`g(t) = 5(cos(pit))^2` Find the derivative of the function.

Expert Answers
hkj1385 eNotes educator| Certified Educator

g(t) = `5(cos(pit))^2`

`g'(t) = 5*2*cos(pit)*{-sin(pit)}*pi`

`or, g'(t) = -10cos(pit)*sin(pit)`

`or, g'(t) = -5sin(2pit)`

Note:-

1)`2sint*cost = sin2t`

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