1) Evaluate the integral:

Antiderivative of the fucntion is f(x) =

So the answer is f(5)-f(4) = 40.8333-22.6666.

Have a feeling I messed up on this one.

2) Evaluate the Integral

Antiderivative of the fucntion being integrated is ln(3x) so the answer is ln(18)-ln(3)

3) Evaluate the indefinite integral: