When inputting the answers below, use the same syntax as you have used in SageMath, for example: input expressions like ry(sin(2) + 1) as x*y*(sin(z)+1). Let f (z, y, 2 ) = -ey + x. yz . z+ sin(x . y). Find (a) fa (b) fyz Check Determine Vg of g(I, y, 2) = 2* y- 12 + 23 and evaluate it at the point (-1, 1, 2)