Question

rational number power
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Answer 1

-6+(-2)

-6-2

-8

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Answer 2

${(2)}^{ - 6} \times { (\frac{3}{4} )}^{ - 2} \\ \\ = \frac{1}{ {2}^{6} } \times {(\frac{4}{3})}^{2} \\ \\ = \frac{1}{64} \times \frac{16}{9} \\ \\ = \boxed{ \frac{1}{36} } \: ans$

RULES USED :-

(a/b)^ - c = (b/a)^c