MCQ
$\left(\frac{-7}{5}\right)^{-1}$ बराबर है-
  • A
    $\frac{5}{7}$
  • $-\frac{5}{7}$
  • C
    $\frac{7}{5}$
  • D
    $\frac{-7}{5}$

Answer

Correct option: B.
$-\frac{5}{7}$
(b)

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