`f(t) = cos(t)/t^3`
`f'(t) = [(t^3)*(-sin(t)) - 3*cos(t)*t^2]/t^6`
`or, f'(t) = [-(t^3)sin(t) - 3(t^2)cos(t)]/t^6`
`or, f'(t) = [-tsin(t) -3cos(t)]/t^4`
We have a Math tutor online right now to help you!
To chat with a tutor, please set up a tutoring profile by creating an account and setting up a payment method. If you initiate a chat, please note you will be charged $0.50 a minute for tutoring time.