# 3J8. f(x, y)xIn y, P(3, 1), u =513f(x, y, z) xyzxyz, P(2, -1, 1),28.(0,,)110. f(x, y, z) ye, (0, 1,-1), u=3 4 1213י1342911-17 Find the directional derivative of the function at the given0in the direction of the vector vpoint(0, TT/3), v= (-6, 8)11. f(x, y) = e*sin y,(0, T/3), v = (-6, 8)(1, 2), v (3, 5)12. f(x, y) =x22 *+ y31(2,4), v 2i -j13. g(s, t) = s t,(3, 0), v= 3i + 4j14. g(u, v) = ue,v= (2, -1,2)f(x, y, z) = x2y + yz,16. f(x,(1, 2, 3),v= (1, 1, 1)(2, 1, 1),y, z) = xy2 tan'z,17. h(r, s, t) In(3r + 6s +9t), (1, 1, 1),V= 4i + 12j + 6k3218. Use the figure to estimate Du f(2, 2).(2, 2)yAYf(2, 2)

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Asked Nov 21, 2019
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## Expert Answer

Step 1

Find directional derivative of function in the direction v.

Step 2

Find the gradient of function g at the point (2, 4).

Step 3

Find a unit vector...

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