You want to differentiate first, then evaluate the derivative at .
Do you know how to differentiate the cosine function?
Find the value of the derivative of the function at (╥, -1)
Function: g(t) = 2 + 3 cos t
Plugged in ╥ to t
2 + 3 cos (╥)
Then I turn it into g' (g prime)
The rule is usually multiply the exponent into the coefficient than minus one from the exponent.
For example y = 4x^2 + 4x + 1
y' = 8x + 4
Can anyone help me with 2 + 3 cos t.