a) Find an equation of the tangent plane to the surface at the given point. xyz = 15, (1, 3, 5) b) Find a set of symmetric equations for the normal line to the surface at the given point.

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A: Given :fx,y,z=lnxy-zx2

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A: Let's find equation of tangent plane and normal line.

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A: Here we have to check whether the statement is true or false.

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A: We can find the 5th term as below.

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A: Given: w=x2+y2, x=4t, y=5t and t=2.   Apply the Chain Rule; dwdt=∂w∂x·dxdt+∂w∂y·dydt    ...1

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A: Solving the problem by finding the value of the problem.

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Q: Sdr Select one: O A. OB. O C. O D. (2x-1)³ V + √2x−1+C 3 +√√2r-1+C +√√2r-1+C + √√√2r-1+C (2z-1)³…

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Q: Əw əx aw ду Əw əz rentiate implicitly to find the first x² + y² + z²-7yw + 10w² = 9 11 || partial…

A: We can solve this as follows:

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A: This question can be solved using the concept of critical points of a function.

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A: In this question we have to sketch the function as per the given statement.

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Q: QUESTION 5 Find the 2nd solution by reduction of order. y" - 4y +4y=0; y₁ = e²x

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