What is the derivative of 5 cos^2 pi t?
1 Answer
Nov 15, 2016
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Explanation:
- hope you can read the notation :)
- deriv .. put in form
5 (cos ( pi t))^2 - power rule first gets
10 ( cos (pi t)) - chain rule requires that you multiply by the deriv of the inside function.
d/dt ( cos ( pi t)) = - sin ( pi t) * pi - the last multiply by pi is due to the chain rule applied to ( pi t)