tirthmunda

Find the derivative of the function.

r(t) = at cos 3ti + b sin³tj + c cos⁵tk

Please write all the steps, I want to understand the whole process. I know you're supposed to use the chain rule in this, but I'm not sure how.

Thanks!

Find the derivative of s(q) = 18cos(q)sin(q)

I know I'm supposed to use the product rule, but how do I treatthe 18 out in front?