#16 please
dition.pdf In Exercises 11-16, use the Chain Rule to evaluate the partial derivative at the point specified 11, af/du and af/du at (u. u) = (-1,-1), where f(x, y, z) = x3 + 12. df/as at (r, s) = (1,0), where f(x,y)=ln(xy), x = 3r + 2s, y=5r + 3s ms g(x,y)=1/(x+y2), (r. θ)=(2V2,5), r sin θ where 13, ag/ae at x r cos θ, y x2-y2. x = 52 + 1, y = 1- 14. ag/as at s = 4, where gir, y) 2s 15, ag/au at (u, u) = (0, l ), where g(x, y) =ã¨2-y2, x = e" cos t, 16. dh at (q, r) = (3. 2), where h(u, u) âc". â = q3.-gr2 dg 17. A baseball player hits the ball and then runs down the first base line at 20 fus. The first baseman fields the ball and then runs toward first base along the second base line at 18 fus as in Figure 7 Lectue P13 Sidepp
