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OpenStudy (anonymous):
Trigonometric Substitution help please
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OpenStudy (anonymous):
\[\int\limits_{0}^{2\sqrt{3}}x^3\sqrt{4-9x^2}dx\]
OpenStudy (anonymous):
I used x=(2/3)sin(theta) ... \[\int\limits_{}^{}\sin^3(\theta)\cos(\theta)d\]
OpenStudy (anonymous):
dtheta* ... And I got about 75 when the answer is supposed to be 64/1215. Can someone help please
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