Question

Solve for theta
1. 2sin square theta=1/2
2. 2 cos 3 theta =1
Plz answer it fast

Answer 1

1. 2sin^2theta=1/2

sin^2theta=1/4

sintheta=1/2

sintheta=sin30

theta =30


2. 2 cos3theta =1

cos3theta =1/2

cos3theta= cos60

3theta= 60

theta = 60/3

theta =20

Answer 2

Ur ans is in the pic