Question

Differentiate

y=c cos t + t^2 sin t

Answer 1

@zepdrix

Answer 2

help please and explain?

Answer 3

cos t = - sin t

sin t = cos t

Answer 4

@dan815

Answer 5

Product rule of differentiation for the 2nd term

Answer 6

d/dt[t^2 sint] = f(t) * g(t) = f'(t) g(t) + f(t)*g'(t) = 2t sint + t^2*cost

Answer 7

d/dt [c cos t + t^2 sint] = -c sint + 2t sint + t^2*cost