Question

I know Its answer is A But I need Solution Please​

Answer 1

given

$\sin ^{2} x = 3 \div 4 \\ \sin(x ) = \sqrt{3} \div 2 \\ \sin(x) = \sin(60)$

so therefore x=60 .

A)180/3=60

2*180/3=120

both are correct; so option A is correct.

because sin (120) =sin(2*60)

= sin 60 ( because 2 is even so sin remains same & in 2nd quadrant sin is also even; so sin120=sin60)

hope it helps you