I am struggling with this problem I have to use calculus to find an expression for the rate of change of temperature with respect to time;
T = 25 - 4cos((π(t-3))/12)
This is the equation in which I need to differentiate. I haven't differentiated sine or cosine functions before?
*note that π is supposed to be pi = 3.142
If anybody could help me, your help is mostly appreciated