Q6. Evaluate

    (i) \left \{\left (\frac{1}{3} \right )^{-1} - \left( \frac{1}{4} \right )^{-1} \right \}^{-1}

Answers (1)
M manish

The detailed solution for the above-written question is as follows

\left \{\left (\frac{1}{3} \right )^{-1} - \left( \frac{1}{4} \right )^{-1} \right \}^{-1}

= [(1\times 3)-(1\times 4)]^{-1}.............by using     a^{-m}= \frac{1}{a^{m}}

= [3-4]^{-1}

\\= [-1]^{-1}\\=-1

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