Solution 1.3:3d
From Förberedande kurs i matematik 1
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- | + | Because | |
- | < | + | <math>27=3\centerdot 9=3\centerdot 3\centerdot 3=3^{3}</math> |
- | {{ | + | thus, |
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+ | <math>\frac{1}{27}=\frac{1}{3^{3}}=3^{-3}</math> |
Revision as of 11:40, 15 September 2008
Because \displaystyle 27=3\centerdot 9=3\centerdot 3\centerdot 3=3^{3} thus,
\displaystyle \frac{1}{27}=\frac{1}{3^{3}}=3^{-3}