Question

Evaluate these integrals using integration by parts?
a) ∫ cos (In x) dx
b) ∫ x tan^(2) x dx

Answer 1

ln(x)=u

Answer 2

du=1/x dx

Answer 3

disregard my previous messages

Answer 4

u=cos(ln(x)) dv= 1
du=-sin(ln(x))/x v=x

Answer 5

I think this is a cyclic problem