Question

Sin x (√csc²x-1) =0,6. Sin x=

Answer 1

Verified answer

Jawab

csc² x - 1 = 1/sin² x  - 1
= (1 - sin² x ) /sin² x
= ( cos ² x ) /(sin² x)
= (cos x/ sin x)²


sin x { √(csc² -1) } = 0,6
sin x (√(cos x/sin x)² = 0 ,6
sin x . (cos x / sin x) = 0,6
cos x =  0, 6 = 3/5
sin x =  4/5 = 0,8