Question

f''(x) of f(x) = sinxcosx

Answer 1

f(x)= sinxcosx

Find first derivative first:

f'(x)=

Step 1: Figure out which pattern to use: Should you use the product or quotient or sum/difference rule?

Answer 2

Hint*:

Product rule: xy = x'y+xy' --> for products
Quotient rule: x/y = (x'y-xy')/(y^2) --> for fractions
Sum/Difference rule: x +- y = x' +-y' --> For sums and differences

Answer 3

@Theanitrix can you figure out which rule to use first?