1. If f(x) = cos2x, then the derivative, f'(x) = ? = = a) 2sinx b) -2 sin x cost c) 2cosx d) 2 cosx sinx
Posted: Tue May 10, 2022 7:28 pm
1. If f(x) = cos2x, then the derivative, f'(x) = ? = = a) 2sinx b) -2 sin x cost c) 2cosx d) 2 cosx sinx