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See attached.

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Upper = ln 11

Right:

pi (e^x - e^-x)

Volume:

324 pi / 55

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u = x^4 - 2x^2 (choice C)

In terms of u:

1/4 u^4

The 1/4 is the only fraction. The u^4 is NOT in the fraction.

Evaluate:

1/20 (x^4 - 2x^2)^5 + C

The 1/20 is the only fraction. The rest is NOT in the fraction.

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