Question

Evaluate
1. 3-²
2. (-4) -²
3. 1/2-⁵
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Answer 1

${3}^{ - 2} = \frac{1}{ {3}^{2} } = \frac{1}{9} \\ \\ {( - 4)}^{ - 2} = \frac{1}{ {( - 4)}^{2} } = \frac{1}{16} \\ \\ \frac{1}{ {2}^{ - 5} } = {2}^{ 5} = 32$

Answer 2

Answer:

(i) 1/9

(ii) 1/16

(iii) 32