Question

${\left(\frac{-5}{3}\right)}^{-1}=?$

$\left(a\right)\frac{5}{3}$

$\left(b\right)\frac{3}{5}$

$\left(C\right)\frac{-3}{5}$

(d)None of these

Answer 1

${\left(\frac{-5}{3}\right)}^{-1}={\left(\frac{-3}{5}\right)}^1$

$=\frac{-3}{5}\{\because (\frac{1}{x}{)}^{-m}=x^m\}$