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What is the integration of (x^2 + 20)/(x sinx +5cosx)^2?


What is the integration of (x^2 + 20)/(x sinx +5cosx)^2?



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1 Answers

Jitender Singh IIT Delhi
askIITians Faculty 158 Points
10 years ago
Ans:
If you simply go by substitution method, you will get
I = \int \frac{x^{2}+20}{(xsinx + 5cosx)^{2}} = \frac{5sinx - xcosx}{xsinx+5cosx} + constant
Thanks & Regards
Jitender Singh
IIT Delhi
askIITians Faculty

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