Question

If sin A =cos(2A-45) then tan A is equal to

Answer 1

Answer:

sin theta= cos(2theta-45°)

or, cos(90°- theta)= cos (2 theta- 45°)

or, 90°-theta=2 theta- 45°

or,3 theta=135°

so, theta= 45°

so tan theta is equals to tan 45°=1

I wish it may help you.......