Question

please answer this questions with steps and for 8th standard please ​

Answer 1

Answer:

1

2

is correct answer of question

Answer 2

Answer:

$( \frac{1}{2} ) ^{ - 3} | ^{3} \\ = (\frac{1}{2} )^{ - 3.3} \\ = \frac{1}{2}$

$( {5}^{ - 1} + {6}^{ - 1} + {7}^{ - 1})^{0} \\ = (5 + 6 + 7)(^{ - 1. - 1. - 1} ) \\ = (5 + 6 + 7)^{ - 1} \\ = 18 ^{ - 1}$

I hope it's help

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