cos(30° + θ) - sin(60° - θ) = ______.
Answer & explanation
Correct answer: option 2
cos(30° + θ) - sin(60° - θ)
Put θ = 30°
cos(30° + 30°) - sin(60° - 30°)
cos60° - sin30° = $\frac{1}{2}$ - $\frac{1}{2}$ = 0
cos(30° + θ) - sin(60° - θ) = ______.
Correct answer: option 2
cos(30° + θ) - sin(60° - θ)
Put θ = 30°
cos(30° + 30°) - sin(60° - 30°)
cos60° - sin30° = $\frac{1}{2}$ - $\frac{1}{2}$ = 0