Question:
Tick (✓) the correct answer
$\left(\frac{-3}{7}\right)^{-1}=?$
(a) $\frac{7}{3}$
(b) $\frac{-7}{3}$
(c) $\frac{3}{7}$
(d) none of these
Solution:
(b) $\frac{-7}{3}$
$\left(-\frac{3}{7}\right)^{-1} \Rightarrow$ Reciprocal of $\frac{-3}{7}$
The reciprocal of $\frac{-3}{7}$ is $\frac{7}{-3}$, i. e., $\frac{-7}{3}$
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.