Question

cos60 cos30-sin60 sin30​

Answer 1

Answer:

$\cos(60) \cos(30) - \sin(60) \sin(30)$

$\frac{1}{2} \times \frac{ \sqrt{3} }{2} - \frac{ \sqrt{3} }{2} \times \frac{1}{2}$

$= 0$

MARK ME AS BRAINLISTER