# Q1. Evaluate.    (ii)     $(-4)^{-2}$

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

We know that,

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

So, here (a = -4) and (m = 2)

Then according to the law of exponent

$(-4)^{-2}= \frac{1}{(-4)^{2}} = \frac{1}{(-4)}\times \frac{1}{(-4)} = \frac{1}{16}$  [  negative $\times$negative = positive]

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