Question

Find the mass of the wire formed by the intersection of the sphere
x2+y2+z2=2

and the plane
x+y−z=0

if the wire has density
3y24
grams per unit length

Answer 1

so you can find the equation of intersection.

1) z = x + y
2) x^2 + y^2 + xy = 1
Which is an eclipse in the xy plane

Hope this helps