@jimh
Jim H
commented
@Abdur R. Note that #arc sinh x = ln(x+sqrt(x^2+1))# Using a hyperbolic trig sunstitution probably leads to W-A 's answer. Another method will lead to yours, although you appear to be missing a #5# in front of your #ln#.
on
What is #f(x) = int x+5sqrt(x^2+1) dx# if #f(2) = 7 #?