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		<id>https://minidemo.mathonline.se/index.php?action=history&amp;feed=atom&amp;title=3.3_L%C3%B6sning_1c</id>
		<title>3.3 Lösning 1c - Versionshistorik</title>
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		<updated>2026-04-09T02:38:22Z</updated>
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	<entry>
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		<title>Taifun den 14 februari 2020 kl. 14.51</title>
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				<updated>2020-02-14T14:51:31Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
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				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Äldre version&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Versionen från 14 februari 2020 kl. 14.51&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Rad 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Rad 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&amp;lt;math&amp;gt; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;f'&lt;/del&gt;(x&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;) &lt;/del&gt;\, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;= &lt;/del&gt;\, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-&lt;/del&gt;\,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;3&lt;/del&gt;\,x&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;^&lt;/del&gt;2 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;:&lt;/ins&gt;:&amp;lt;math&amp;gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;\begin{array}{cccccrl} 2 &amp;amp; \cdot &amp;amp; &lt;/ins&gt;(x\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;+&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;1)&amp;#160; &amp;#160; &amp;#160; &amp;#160;  &amp;amp; = &amp;amp; 40 &amp;amp; \quad &amp;amp; {\rm Täck\;över\;} (x&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;+&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;1) \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  2 &amp;amp; \cdot &amp;amp; \boxed{(&lt;/ins&gt;x&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;\,+\,1)} &amp;amp; = &amp;amp; 40 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  &lt;/ins&gt;2 &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp; \cdot &amp;amp; \boxed{\quad\;\;?\quad\;\;} &amp;amp; = &amp;amp; 40 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; 2 &amp;amp; \cdot &amp;amp; \boxed{\quad\;20\quad\;} &amp;amp; = &amp;amp; 40 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; \end{array}&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Vi väljer t.ex. punkten &lt;/del&gt;&amp;lt;math&amp;gt; \&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, x = 0,1 &amp;lt;/math&amp;gt; som ligger till höger om derivatans nollställe &amp;lt;math&amp;gt; &lt;/del&gt;\&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, x = 0 \, &lt;/del&gt;&amp;lt;/math&amp;gt; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;och bestämmer derivatans tecken i denna punkt:&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;::::&lt;/ins&gt;&amp;lt;math&amp;gt; \&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;qquad &lt;/ins&gt;\&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Downarrow &lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&amp;lt;math&amp;gt; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;f' &lt;/del&gt;(&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/del&gt;,1) = &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-&lt;/del&gt;\,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;3&lt;/del&gt;\&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;cdot (0&lt;/del&gt;,1&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;)^2 &lt;/del&gt;= &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-&lt;/del&gt;\,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;3&lt;/del&gt;\&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;cdot 0&lt;/del&gt;,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;01 &lt;/del&gt;= &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;-&lt;/del&gt;\,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;0&lt;/del&gt;,&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;03 &amp;lt; 0 &lt;/del&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;:&lt;/ins&gt;:&amp;lt;math&amp;gt; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;\begin{array}{rclcl} &lt;/ins&gt;(&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;x\,+\&lt;/ins&gt;,1) &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp; &lt;/ins&gt;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp; 20 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  x&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;+&lt;/ins&gt;\,1 &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt; &amp;amp; &lt;/ins&gt;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp; 20 &amp;amp; \quad &amp;amp; {\rm Täck\;över\;} x&amp;#160; \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; \boxed{x}&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;+&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;1 &amp;amp; &lt;/ins&gt;= &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;amp; 20 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; \boxed{?}&lt;/ins&gt;\,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;+\&lt;/ins&gt;,&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;1 &amp;amp; = &amp;amp; 20 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  \\&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160; &amp;#160;  \boxed{19}\,+\,1 &amp;amp; = &amp;amp; 20 &amp;amp;&amp;#160; &amp;#160; &amp;#160;  &amp;amp;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;#160; &amp;#160; &amp;#160; &amp;#160;  \end{array}&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;Derivatans tecken till höger om sitt nollställe är &lt;/del&gt;&amp;lt;math&amp;gt; \&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, - &lt;/del&gt;\&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;, &lt;/del&gt;&amp;lt;/math&amp;gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt; \&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;qquad &lt;/ins&gt;\&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;Downarrow &amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#160;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;&amp;lt;math&amp;gt; \;\;\; x \; = \; 19 &lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

	<entry>
		<id>https://minidemo.mathonline.se/index.php?title=3.3_L%C3%B6sning_1c&amp;diff=19718&amp;oldid=prev</id>
		<title>Taifun den 30 december 2014 kl. 15.58</title>
		<link rel="alternate" type="text/html" href="https://minidemo.mathonline.se/index.php?title=3.3_L%C3%B6sning_1c&amp;diff=19718&amp;oldid=prev"/>
				<updated>2014-12-30T15:58:07Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
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				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Äldre version&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Versionen från 30 december 2014 kl. 15.58&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Rad 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Rad 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;:&lt;/del&gt;:&amp;lt;math&amp;gt; f'(x) \, = \, -\,3\,x^2 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&amp;lt;math&amp;gt; f'(x) \, = \, -\,3\,x^2 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Vi väljer t.ex. punkten &amp;lt;math&amp;gt; \, x = 0,1 &amp;lt;/math&amp;gt; som ligger till höger om derivatans nollställe &amp;lt;math&amp;gt; \, x = 0 \, &amp;lt;/math&amp;gt; och bestämmer derivatans tecken i denna punkt:&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Vi väljer t.ex. punkten &amp;lt;math&amp;gt; \, x = 0,1 &amp;lt;/math&amp;gt; som ligger till höger om derivatans nollställe &amp;lt;math&amp;gt; \, x = 0 \, &amp;lt;/math&amp;gt; och bestämmer derivatans tecken i denna punkt:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;:&lt;/del&gt;:&amp;lt;math&amp;gt; f' (0,1) = -\,3\cdot (0,1)^2 = -\,3\cdot 0,01 = -\,0,03 &amp;lt; 0 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;:&amp;lt;math&amp;gt; f' (0,1) = -\,3\cdot (0,1)^2 = -\,3\cdot 0,01 = -\,0,03 &amp;lt; 0 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Derivatans tecken till höger om sitt nollställe är &amp;lt;math&amp;gt; \, - \, &amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Derivatans tecken till höger om sitt nollställe är &amp;lt;math&amp;gt; \, - \, &amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

	<entry>
		<id>https://minidemo.mathonline.se/index.php?title=3.3_L%C3%B6sning_1c&amp;diff=19705&amp;oldid=prev</id>
		<title>Taifun: Skapade sidan med '::&lt;math&gt; f'(x) \, = \, -\,3\,x^2 &lt;/math&gt;  Vi väljer t.ex. punkten &lt;math&gt; \, x = 0,1 &lt;/math&gt; som ligger till höger om derivatans nollställe &lt;math&gt; \, x = 0 \, &lt;/math&gt; och be...'</title>
		<link rel="alternate" type="text/html" href="https://minidemo.mathonline.se/index.php?title=3.3_L%C3%B6sning_1c&amp;diff=19705&amp;oldid=prev"/>
				<updated>2014-12-30T15:04:48Z</updated>
		
		<summary type="html">&lt;p&gt;Skapade sidan med &amp;#039;::&amp;lt;math&amp;gt; f&amp;#039;(x) \, = \, -\,3\,x^2 &amp;lt;/math&amp;gt;  Vi väljer t.ex. punkten &amp;lt;math&amp;gt; \, x = 0,1 &amp;lt;/math&amp;gt; som ligger till höger om derivatans nollställe &amp;lt;math&amp;gt; \, x = 0 \, &amp;lt;/math&amp;gt; och be...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Ny sida&lt;/b&gt;&lt;/p&gt;&lt;div&gt;::&amp;lt;math&amp;gt; f'(x) \, = \, -\,3\,x^2 &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Vi väljer t.ex. punkten &amp;lt;math&amp;gt; \, x = 0,1 &amp;lt;/math&amp;gt; som ligger till höger om derivatans nollställe &amp;lt;math&amp;gt; \, x = 0 \, &amp;lt;/math&amp;gt; och bestämmer derivatans tecken i denna punkt:&lt;br /&gt;
&lt;br /&gt;
::&amp;lt;math&amp;gt; f' (0,1) = -\,3\cdot (0,1)^2 = -\,3\cdot 0,01 = -\,0,03 &amp;lt; 0 &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Derivatans tecken till höger om sitt nollställe är &amp;lt;math&amp;gt; \, - \, &amp;lt;/math&amp;gt;.&lt;/div&gt;</summary>
		<author><name>Taifun</name></author>	</entry>

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