How do i differentiate #xe^(xy)cos(2x)# with respect to x??
1 Answer
Feb 5, 2015
This is actually a multiplication rule within a multiplication rule.
I'm going to evaluate it as:
Remember the rule for multiplication:
first(derivative of the 2nd) + second(derivative of the first)
You also need to remember that you must take the derivative of the "inside" of the cos.
We can factor out