x = 5tan(y) -->
x/5 = tan(y) -->
arctan(x/5) = y
on the interval (0,1). So I use x=5tany, and dx=5sec^2y...
I got it down to integral
and then substituting sec^2 for y=tan^2y...left me with 5sec^2y/5sec^2y..so Im left with the integral of 1, right?
Then I get y+C....but how do I solve for y...I'm really confused, did I do all the above steps the right way?