1.

(- 5)-3 × (- 5)-4 = .........................A) (-5)-7B) (-5)7 C) \(\frac{1}{(5)^7}\)D) \(\frac{1}{(-5)^{-7}}\)

Answer»

Correct option is (A) (-5)-7

\((-5)^{-3}\times(-5)^{-4}=(-5)^{(-3)+(-4)}\)

\((-5)^{-7}\)

Correct option is  A) (-5)-7



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