1. Find an equation of the plane containing (3,5,2) and the line {34t,2t,5 + t}.
2. Find parametric equations of the line of intersection of the two planes described by x + 6y + 2z = 7 and 4x2yz = 1.
3. Find and classify all critical points of f(x,y) = x^2 + y^2 + 1 /(x^2)(y^2)