If, 0 < θ < 90°and sin(2θ + 50) = cos (4θ + 16), then what is the value ofθ (in degrees)?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 4o
|
Understanding |
Application |
|
sin θ = cos (90– θ) |
sin (2θ + 50) = cos (4θ + 16) sin (2θ + 50) = sin (90 – 4θ – 16) (2θ + 50) = (90 – 4θ – 16) 6θ = 24 θ = 4o |