Question

Find the derivative of cos(20t^2 -theta(t) + theta^3)=2t​

Answer 1

The derivative of the given expression is:

f'(t) = -sin(20t^2 - θ(t) + θ(t)^3) * (40t - θ'(t) + 3θ(t)^2θ'(t)) - 2