double integral of 2/(2-x^2+y^2) x's from -y to y and y's from 0 to sqrt(2)/2
The Attempt at a Solution
okay so i first started by using a trig substitution
and can i call a=(2+y^2) my a to simplify things so i get
then we get 2/(sqrt(a)) ln|sec(t)+tan(t)| evaluated from -y to y
then i get 2ln|(y+sqrt(a))(sqrt(a)-y))| after i simplified then I’m not sure what to do here .