Given h(x, y, z) = 4Vx+ ln (y² + z²+1). (a) Find the directional derivative of h at the point (1,0, –1) along the direction of (-1,2, 2). (b) Suppose x = et y = tant z = t3 – t – 1 dh when t = 0. dt Use the general chain rule to find

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A: Please refer to the image below.

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