Question

please solve it fast.........

Answer 1

[Hello]
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Concept:-: Exponent and Power

Using Formula:

a^-1=1/a

Thanks!!!

Answer 2

HERE IS YOUR ANSWER...⬇⬇

$\underline{SOLUTION}$ ➡

$\: \: \: \: \frac{a {}^{ - 1} + b {}^{ - 1} }{ab {}^{ - 1} } \\ \\ = \frac{\frac{1}{a } + \frac{1}{b} }{ \frac{1}{ab} } \\ \\ = \frac{ \frac{b + a}{ab} }{ \frac{1}{ab} } \\ \\ = \frac{b + a}{ab} \times \frac{ab}{1} \\ \\ = \frac{b + a}{1} \\ \\ = b + a \\ \\ = a + b$

$\underline{ANSWER}$ ➡

$\boxed{ \frac{a {}^{ - 1} + b {}^{ - 1} }{ab {}^{ - 1} } = a + b}$

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