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Integral Calculus> find the integral...

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

piyush aggarwal , 13 Years ago

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1 Answers

Jitender Singh

Last Activity: 11 Years ago

Ans:

If you simply go by substitution method, you will get

$I = \int \frac{x^{2}+20}{(xsinx + 5cosx)^{2}} = \frac{5sinx - xcosx}{xsinx+5cosx} + constant$

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Jitender Singh

IIT Delhi

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