Solving an indefinite integral of the form ∫xarctgαxdx by integration by parts, where α takes the values 1,2,3,4,5...n
An example of solving integrals for α=1,2,5
∫xarcctgαxdx, ∫xarcctgxdx, ∫xarcctg2xdx, ∫xarcctg5xdx

The solution is in PDF format