Find the derivative of f(x)=2sinx−5x3f(x) = 2\sin x - 5x^3f(x)=2sinx−5x3.
2cosx−15x22\cos x - 15x^22cosx−15x2
−2cosx−15x2-2\cos x - 15x^2−2cosx−15x2
2cosx−5x22\cos x - 5x^22cosx−5x2
2cosx+15x22\cos x + 15x^22cosx+15x2