Question

ईट का पावर 3 मल्टीप्लाई टू का पावर फोर​

Answer 1

Answer:

Step-by-step explanation:f the power of sin x and cos x are both even positive integers, use De' Moivre's theorem as follows: Let cos x + i sin x = z. ... Alternative Method : Simplify the integral as the sum of sines and cosines of multiple angles, using .2 1 - cos 2x sin x— , 2 1 + cos 2x COS X = sin x cos x = sin 2x sin3x = 3 sin x - sin 3x -» 3 cos x + cos ...