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Find (i) inte^(x)(tan^(-1)x+1/(1+x^(2)))...

Find (i) `inte^(x)(tan^(-1)x+1/(1+x^(2)))dx` (ii) `int((x^(2)+1)e^(x))/((x+1)^(2))dx`

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The correct Answer is:
`(i)e^(x)tan^(-1)+x+c, (ii) ((x-1)/(x+1))e^(x)+c`
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