Sorry I dont know how to use the notation, but help me solve the following through the u substitution.(adsbygoogle = window.adsbygoogle || []).push({});

1) dx/square root of x^2+5x

2)dx/x^2*square root of 1-x^2

I am embarassed that I am not able to solve these still after devoting much thought, but help from anyone will be appreciated.

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# Help evaluating these integrals

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