cos(30° + θ) - sin(60° - θ) = ______.

$\frac{\sqrt{3}}{2}$ 0 $\frac{1}{2}$ $\frac{1}{\sqrt{2}}$

0

cos(30° + θ) - sin(60° - θ) Put θ = 30° cos(30° + 30°) - sin(60° - 30°) cos60° - sin30° = $\frac{1}{2}$ - $\frac{1}{2}$ = 0