1.

\(\sqrt{4^4 \times \, 5^4}\) = ............................A) 4 B) 4 × 5 C) 42 × 52 D) 4 × 5

Answer»

Correct option is   C) 42 × 52 

Correct option is (C) 42 × 52

\(\sqrt{4^4\times5^4}=(4^4\times5^4)^\frac12\) \(=(4^4)^\frac12\times(5^4)^\frac12=4^2\times5^2.\)



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