The derivaive of f(x, y, z) at a point P is greatest in the direction given by In this direction, the value of the derivative is 2/3. a. Find Vfp. Vf\p ab = sin (a) ab 8 Or sin (a) 8 Ox *** FREE b. Find the directional derivative of fat P in the direction given by u-41; +44k. D.f(P) = f C XX S C -91 +95-97. CX $2 ET B

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