1 Apply Taylor's series to expand f (x,y) = e* cos y in the powers of (x – 2) and (y + 1). 2 Using double integrals, determine the area of the cardioid: r = a(1 – sin 0). A company x, y and z respectively. The annual revenue function for this company is defined as: 3 produces steel boxes at three different plants in amounts

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Chapter2: Second-order Linear Odes
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Question Description
1
Apply Taylor's series to expand f(x,y) = e* cos y in the powers of (x – 2) and (y + 1).
2
Using double integrals, determine the area of the cardioid: r = a(1 – sin 0).
3 A company produces steel
x, y and z respectively. The annual revenue function for this company is defined as:
boxes
at three different
plants in
amounts
f(x,y, z) = 8xyz² – 200(x + y + z).
The company is to produce 100 units annually. How should the production be distributed to
maximize the revenue?
4
Reverse the order of integration, and hence evaluate:
I =
e¯xy dy dx
Determine the directional derivative of f = x²yz + 4xz² at the point P (1, –2, 1) in the
direction of the vector 2i – j– 2k.
5
6
Evaluate f /(x² + y²)dV over the interior of x² + y² + z² = 4.
Transcribed Image Text:Q. No. Question Description 1 Apply Taylor's series to expand f(x,y) = e* cos y in the powers of (x – 2) and (y + 1). 2 Using double integrals, determine the area of the cardioid: r = a(1 – sin 0). 3 A company produces steel x, y and z respectively. The annual revenue function for this company is defined as: boxes at three different plants in amounts f(x,y, z) = 8xyz² – 200(x + y + z). The company is to produce 100 units annually. How should the production be distributed to maximize the revenue? 4 Reverse the order of integration, and hence evaluate: I = e¯xy dy dx Determine the directional derivative of f = x²yz + 4xz² at the point P (1, –2, 1) in the direction of the vector 2i – j– 2k. 5 6 Evaluate f /(x² + y²)dV over the interior of x² + y² + z² = 4.
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