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OpenStudy (anonymous):
intgration for sin4x*sin3x
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OpenStudy (turingtest):
is this\[\int\sin(4x)\sin(3x)dx\]?
OpenStudy (anonymous):
yes
OpenStudy (turingtest):
use the identity\[\sin\alpha\sin\beta=\cos(\alpha-\beta)-\cos(\alpha+\beta)\]and it's a snap
OpenStudy (anonymous):
thank you very much
OpenStudy (turingtest):
welcome :)
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