Find an equation for the tangent plane and normal line to the graph of the function f(x, y) = y2 In(1 + x2 + y2) at the point (0, 1, In(2)). (Write the normal line as a comma separated list of parametric equations; let t be the parameter.) Tangent plane = - In(2) = (y -1) (1 + 2In(2) )