Question

please solve dear................

Answer 1

2-
(4+8)^-1 ÷ 3/2
12^-1÷3/2
1/12×2/3
2/36
=1/18


2--
(-4)^3÷ (8/3)^2
(-4)^3×(3/8)^2
-64×9/64
=-9
Plz mark as brainliest.

Answer 2

Hi...☺

Here is your answer...✌

(ii).

$( {4}^{ - 1} + {8}^{ - 1} ) \div {(\frac{2}{3} ) }^{ - 1} \\ \\ ( \frac{1}{4} + \frac{1}{8} ) \div \frac{3}{2} \: \: \: \: \: \: \: \: \: \: \: \: | \because {a}^{ - n} = \frac{1}{ {a}^{n} } | \\ \\( \frac{2 + 1}{8} ) \times \frac{2}{3} \\ \\ = \frac{3}{8} \times \frac{2}{3} \\ \\ = \frac{1}{4}$

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(iv).

${ ( - \frac{1}{4}) }^{ - 3} \div {(\frac{3}{8} ) }^{ - 2} \\ \\ = { (- 4)}^{ 3} \div {(\frac{8}{3}) }^{ 2} \: \: \: \: \: \: \: \: \: \: | \because {a}^{ - n} = \frac{1}{ {a}^{n} } | \\ \\ = - 64 \div \frac{64}{9} \\ \\ = - 64 \times \frac{9}{64} \\ \\ = - 9$