- #1
La_Lune
- 5
- 0
Homework Statement
a) ∫xe^x/√(1+e^x) dx from ln3 to ln8
b)∫arccos(tanx)dx from -π/4 to π/4
Homework Equations
uv-∫vdu? Not so sure about this
The Attempt at a Solution
For question a I tried to make e^x/√(1+e^x)=dv and x=u, but then my result was different from the correct answer, so I guess perhaps I was proceeding the wrong way...For question b I really don't have any idea, perhaps I should substitute tanx with something? Thanks for your help!