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I need solve this assignment of Calculus II Workout Problem (60 points) Part a: (20 points) 1. Find the domain of the vector function 2t

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I need solve this assignment of Calculus II

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Workout Problem (60 points) Part a: (20 points) 1. Find the domain of the vector function 2t r(t) = 1 - 12 V+2 - 4 2. Compute the limit lim r(t) , for 1- 0 r(t) = Part b: (20 points) We consider the function f(x, y) = x sin y - y cos x + * 2 Find fx(x, y) , fxy(x, y) , and fxyx (x, y). Part c: (20 points) 1. Find the gradient of the function f(x, y, z) = In(xy) - zx at the point (1, 1, -1). 2. Find the directional derivative of the function f(x, y, z) = In(xy) - zx at the point (1, 1, -1) in the direction of the vector

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