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Q1. Evaluate.

    (i) 3^{-2}

Answers (1)

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The detailed explanation for the above-written question is as follows,

We know that,

a^{-m}=\frac{1}{a^{m}}

So,    here m  =2 and a = 3 

3^{-2}=\frac{1}{3^{2}} = \frac{1}{3}\times \frac{1}{3} = \frac{1}{9}

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