# 9.M(a, y, z)xyz xyz, P(2, -1, 1), u-10. f(x, y, z) y'e, P(0, 1, -1), u-11-17 Find the directional derivative of the function at the given(0,.-)4 1213, 13point in the direction of the vector v.(x. y) = e' sin y,(0, T/3),v= (-6, 8)X2 >(1, 2), v = (3,5)2. f(x, y)(2, 4),13. g(s, t) st,2i - jv14. g(u, v) = u?e , (3, 0), v 3i + 4j(1, 2, 3), v = (2, -1,2)15, f(x, y, z) = x'y + yz,WHG16. f(x, y, z) = xy tan z, (2, 1, 1), v= (1, 1, 1)17, h(r, s, t) = In (3r +6s +9t), (1, 1, 1),v = 4i + 12j + 6k18. Use the figure to estimate Du f(2, 2).у(2,2)Vf(2, 2)

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Step 1

Given:

Step 2

If f is a differentiable function of x and y, then f(x ,y ,z) has a directional derivative in the direction of any unit vector v and

Step 3

The directional derivative of h(r, s ,t) in the directi...

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MathCalculus