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Question Number 43159 by MASANJA J last updated on 07/Sep/18

Answered by alex041103 last updated on 08/Sep/18

$$For\int \frac{dx}{\sqrt{x+15}}:$$$$\int \frac{dx}{\sqrt{x+15}}=\int \frac{d(x+15)}{\sqrt{x+15}}=\int u^{-1/2}du=$$$$=2u^{1/2}+C=2\sqrt{x+15}+C$$$$$$$$For\int \frac{ln\left(x\right)dx}{{(1+x)}^2}seeQ.43191$$

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