MCQ
Tick $(\checkmark)$ the correct answer the following: $\Big(\frac{-3}{7}\Big)^{-1}=\ ?$
- A$\frac{7}{3}$
- ✓$\frac{-7}{3}$
- C$\frac{3}{7}$
- DNone of these.
✓
Answer
Correct option: B.
$\frac{-7}{3}$
$\Big(\frac{-3}{7}\Big)^{-1}=\frac{-7}{3}$
$\Big(\because\text{x}^{-1}=\frac{1}{\text{x}}\Big)$
$\Big(\because\text{x}^{-1}=\frac{1}{\text{x}}\Big)$
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