Let f(x, y) = (x + 2)? – (y+2)². Fill in the blanks. f(-2, –2) = 0 fa(-2, –2) = fy(-2, –2) = 0 f(x, y) = (x + 2)² – (y+2)² is differentiable at (-2, –2). - not differentiable differentiable

Find the directional derivative of the function at P in the direction of V. f(x,y) = x³-y³, P(5,4), v = √² (i+j) a. (922.5)√√2 b. (-5.252.5)√√2 D C. (1,845.0)√√2 d. (5,252.5)√2 e. (1,677.5)√√2

Differentiate the function.

x*y+2x? Let f(x, y) = and find f,(1,2) and f,(1,2) 3x- y