Tick (✓) the correct answer

Question:

Tick (✓) the correct answer

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

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

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

(c) $\frac{-3}{5}$

(d) none of these

Solution:

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

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

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