Question

find answer for this question ​

Answer 1

Dear User, Your Answer Is In Attachment.

Answer 2

(2 sin theta - 1) (2sin theta +1)=0

(2sin theta)^2 - (1)^2 =0

(4sin^2theta) - 1=0

4(sin^2 theta) - 1=0

sin ^ 2 theta = 1/4

Taking Sq. Root both sides

Sin theta =1/2

Sin 30 = 1/2

Theta = 30