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| Math Central | Quandaries & Queries |
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Question from Helen, a student: How do you write (1/x) in exponential form? |
Hi Helen,
You ned to use a negative exponent. For any non-negative integer $a$ and any integer n,
\[ a^{-n} = \frac{1}{a^n}.\]
Hence $\large \frac{1}{x} = x^{-1}.$
I hope this helps,
Penny
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