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Mathematics 21 Online
OpenStudy (anonymous):

When integrating Sin(x+y) what do you do to the x+y part? I know Sin goes to -Cos.

OpenStudy (anonymous):

I always thought of it as backwards chain rule. It is -cos(x+y)(1/(d/dx or d/dy x+y))

OpenStudy (anonymous):

Ok I think I've got it. Thanks!

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