Solve the problem. dw Evaluate 7 at att = - n for the function w(x, y, Z) = XV 2 ; X = sin t, y = cost, z = t2. O O Question 17 1 pts Solve the problem. Find the equation for the tangent plane to the surface z= -2x2 - sy2 at the point (2, 1, -16). 2x + y- 16z = 1 -8x - 16y - Z = -26 O 2x + y- 16z = -13 O -8x - 16y - Z= -16Question 18 1 pts Find the linear approximation of the function at the given point. f(x, v) = 10x2 - 4v2 + 8 at (5, 6) O L(x, y) = 100x - 48v - 98 OE Question 19 1 pts Find two paths of approach from which one can conclude that the function has no limit as (X, y) approaches (0, 0). O (X30), (Day) 0 (37,0) , (090 O (X,0), (X90 0 (X,Y), (_X=_Y)