SEATWORK Solve two problems; one from each number. Submit clear and upright photos of your solutions. 1. Find a unit vector in the direction of AB. а. А(1,— 2,3); В(-3,1, 2). b. A(-3, 1, 2); в(1,-2,3). с. А(2, —1, —5);B В(3,1, — 2). с. А(2, 3, —5); в(-3,4, — 2).

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A: ∂f∂x=4y+5z2∂f∂x=84∂f∂y=4x+6z2∂f∂y=108∂f∂z=10xz+12yz∂f∂z=168Therefore, the gradient is∇f (3, 1, 4)…

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Q: region

A: Please refer to the image below

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A: I am attaching image so that you understand each and every step.

Q: てキ

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A: answer is in step 2

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A: Here, (sin 2z-3cos 2z)2 =sin22z-6sin 2zcos 2z+9cos22z=sin22z+cos22z-3(2sin 2zcos 2z)+8cos22z=1-3sin…

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A: Topic = Derivative

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