Original post by Laz236
I'm struggling to do this question
Integrate (cosx+sinx) /(cosx-sinx) dx
Any help, hints will be greatly appreciated thanks
Integrate (cosx+sinx) /(cosx-sinx) dx
Any help, hints will be greatly appreciated thanks
It's a substitution. Think about how sin and cos differentiate. You want to make the denominator as simple as possible and cancel some of the numerator.
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