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OpenStudy (1018):
I need a refresher with my integration, help me with this problem:
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OpenStudy (1018):
\[\int\limits_{}^{}cosx^2 xdx\]
OpenStudy (welshfella):
use substitution put u = x^2 du / dx = 2x
OpenStudy (1018):
guys im sorry! it;s cos^2 xdx
OpenStudy (1018):
really really sorry
OpenStudy (welshfella):
for this one use the identity cos^2 x = (1/2) ( cos 2x + 1)
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OpenStudy (welshfella):
|dw:1465468912502:dw|
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