exam2practicesolutions - Math 2260 Exam#2 Practice Problem...

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Math 2260 Exam #2 Practice Problem Solutions1. EvaluateZtan3(x)dx.
2. IntegrateZsin4(2x)dx.
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3. IntegrateZx2-25xdx.
4. EvaluateZe1x(lnx)3dx.
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5. Suppose a 20 foot chain which weighs 5 pounds per foot is coiled on the ground. One end of the chainis attached to a small crane. How much work does it take to lift this end 20 feet off the ground, sothat the chain is fully extended in the air?

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