Skillnad mellan versioner av "1.5 Lösning 1b"
Från Mathonline
Taifun (Diskussion | bidrag) m |
Taifun (Diskussion | bidrag) m |
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| − | <math> {2\,x^{-5} \over 3\,x^{-8}} \cdot (2\,x)^{-1} = {2\,x^{-5-(-8)} \over 3} \cdot (2\,x)^{-1} = {2\,x^{-5+8} \over 3} \cdot (2\,x)^{-1} = | + | <math> \displaystyle {{2\,x^{-5} \over 3\,x^{-8}} \cdot (2\,x)^{-1} = {2\,x^{-5-(-8)} \over 3} \cdot (2\,x)^{-1} = {2\,x^{-5+8} \over 3} \cdot (2\,x)^{-1} = } </math> |
| − | <math> = {2\,x^3 \over 3} \cdot (2\,x)^{-1} = {2\,x^3 \over 3} \cdot {1 \over 2\,x} = {2\,x^3 \cdot 1 \over 3 \cdot 2\,x} = {x^2 \over 3}</math> | + | <math> \displaystyle {= {2\,x^3 \over 3} \cdot (2\,x)^{-1} = {2\,x^3 \over 3} \cdot {1 \over 2\,x} = {2\,x^3 \cdot 1 \over 3 \cdot 2\,x} = {x^2 \over 3} } </math> |
Nuvarande version från 24 mars 2015 kl. 23.11
\( \displaystyle {{2\,x^{-5} \over 3\,x^{-8}} \cdot (2\,x)^{-1} = {2\,x^{-5-(-8)} \over 3} \cdot (2\,x)^{-1} = {2\,x^{-5+8} \over 3} \cdot (2\,x)^{-1} = } \)
\( \displaystyle {= {2\,x^3 \over 3} \cdot (2\,x)^{-1} = {2\,x^3 \over 3} \cdot {1 \over 2\,x} = {2\,x^3 \cdot 1 \over 3 \cdot 2\,x} = {x^2 \over 3} } \)
