Answer:
if those functions under the radical are multiplied together they can be expanded as:
I=((x1+x2)^2 - 1)*(1-(x1-x2)^2)/8
let u=x1+x2 and v=x1-x2
I = (u ^ 2–1) * (1-v ^ 2)
du = dx1 + dx2; dv = dx1-dx2;
dx1 * dx2 = (du-dx2) * (dx1-dv)
or-or-or ...
int(I)*dx1*dx2=5/2
Step-by-step explanation:
this is the correct answer you want
please follow me ☺️
