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A) Evaluate ∫ 6x(2x^2 - 1) dx

b) Write down a definite integral that will give the value of the area under the curve y=x^3 cos (1/4 x) between x=pi and x=2pi pi=3.142

(you are not asked to evaluate the integral by hand)

c) use mathcad to find the area described in part b, giving answer to 3 decimal places.

keywords: integration, integrates, integrals, integrating, double, triple, multiple

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Integrals are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.