Solve the attached:

-Let f($,y) = \\/$4 +y4. (a) Find the tangent plane to the surface 2 = f (my) at the point (1,0,1). (b) Use linear approximation to estimate (0.93)4 + (0.02)4. ) (0 Consider the level curve in the cry-plane given by f (2:, y) = 1. Find the tangent line to this curve at the point (1,0)