Question

please solve this and explain how .best answer will get the most brainiliest answer

Answer 1

a to the power of -1 = 1/a

√b/a×√c/a×√a/a
= √b/√a × √c/√a × √1 {As a/a=1 ; √1 = 1}
= √b×√c/ (√a)2
= √bc/a = 0 {As for now}
Reciprocal,rooting on both sides denominator
= √bc/1/√a = 0/1/√1
= √bc × √a = 0
= √abc

Hence the answer is option (a)
.

Answer 2

$\sqrt{ \frac{b}{a} } \times \sqrt{ \frac{c}{a} } \times \sqrt{ \frac{a}{a} } \\ (as \: \sqrt[ - 1]{a} = \frac{1}{a} ) \\ \sqrt{ \frac{b}{a} } \times \sqrt{ \frac{c}{a} } \times \sqrt{1} \\ \sqrt{ \frac{b}{a} } \times \sqrt{ \frac{c}{a} } \times 1 \\ \sqrt{ \frac{bc}{ {a}^{2} } } \\ \frac{ \sqrt{bc} }{a}$