ocr: 5. a) What is the smallest that f = V2 - + (2 - + - can be, subject to the constraint xty+z == 1? 2 2 b) Where does f(x,y) i + (3) +4 assume its biggest value over the region OX 1, OY1? 6. a) A plane passes through the points (0,1,1) (2,0,1) (3,1,0) (1,2.1). i) Find its equation. ii) Find its distance from the origin. b) Let r(t) = 1 3 - 291-263-24. Find the curvature at t=2.
