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| Math Central | Quandaries & Queries |
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I am having trouble integrating this problem. It says to evaluate the integral but I don't know what to do or how to do it. It is the integral of if you could help that would be awesome! |
Hi Cathrine,
sin3(x) = sin2(x) sin(x) = (1 - cos2(x)) sin(x) so the integrand can be written
13sin^3(x)*cos^7(x) = 13 (1 - cos2(x)) cos7(x) sin(x)
Does that help?
If you need further assistance write back,
Harley
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