-3-7 -1- a 7-3 b -7-3 c 3-7 d none of these

( 3/7 )^ 1= 7/3 (∵ x^ 1=1/x ) ...

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-3/7 -1=? a 7...

Question

${(\frac{- 3}{7})}^{- 1} = ?$

(a) $\frac{7}{3}$

(b) $\frac{- 7}{3}$

(c) $\frac{3}{7}$

(d) none of these

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