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OpenStudy (anonymous):
How to integrate [x*cos((5x))^2]dx ?
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OpenStudy (turingtest):
use\[\cos^2x=\frac12[1+\cos(2x)]\]and integrate by parts
OpenStudy (turingtest):
we are talking about \[\int x\cos^2(5x)dx\]right?
OpenStudy (anonymous):
yeah :)
OpenStudy (turingtest):
ok, follow my prescription above what part are you stuck on?
OpenStudy (anonymous):
Got the answer :) thanks for the help :)
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OpenStudy (turingtest):
welcome :)
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