Question

Evaluate the integral by using the given transformations:
∫ ∫ y/xe^(x^2-y^2) dA

Where R is the region in the first quadrant bounded by the hyperbolas x^2-y^2=1 and x^2-y^2=4 and by the lines x=2y and x=sqrt(2)*y; let x=usec(v) and y=utan(v) for u>0 and 0 13 years ago