Question

root-9×root-4 result kya hoga please answer

Answer 1

Answer is root - 36 which is a square root of 6 .
Therefore , 6 is the complete answer.
Hope it helps you !
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Answer 2

given √(-9) ×√(-4)

= √(-9)(-4) since √a×√b=√ab
=√36
=√6²
= 6 or -6