Question

3 sin square theta + 4 cos square theta equal to 1 find the value of theta​.

Answer 1

Step-by-step explanation:

3sin^2teta+4cos^2teta=1

3sin^2teta+4(1-sin^2teta)=1

3sin^2teta+4-4sin^2teta =1

4-sin^2teta=1

sin^2teta=3(sin^2teta=1-cos 2teta/2)

1-cos 2teta=6

cos 2teta=-5