Question

Pls tell this question

Answer 1

Correct answer would be:

X = 30° and

X = 90°.

HOPE THIS HELPS YOU.

Answer 2

Step-by-step explanation:

(2sinx)*(sinx)-(-1)=3sinx-0

2sin^2x+1=3sinx

2sin^2x-3sinx+1=0

here,a=2,b= -3,c=1

roots=[-b(+-)√(b^2-4ac)]/2a

={-(-3)(+-)√[(-3)^2-4*2*1]}/2*2

=[3(+-)√(9-8]/4

=[3(+-)√1]/4

=(3+1)/4. or. (3-1)/4

=1. or. 1/2

hence x=1. or 0.5

given x is real and 0<=x<=90

hence x =1