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Integrate the functionse^x(1/x-1/(x^2))...

Integrate the functions`e^x(1/x-1/(x^2))`

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` int e^(x) ((1)/(x)-(1)/(x^(2)))dx`
` =int e^(x). (1)/(x)dx -int e^(x).(1)/(x^(2)) dx`
`=(1)/(2) int e^(x) dx- int {(d)/(dx)(1)/(x) . int e^(x) dx}dx`
`-inte^(x) .(1)/(x^(2)) dx+C`
` =(1)/(x)e^(x) - int(-(1)/(x^(2)))e^(x)dx- int e^(x) .(1)/(x^(2)) dx+C`
`=(e^(x))/(x)+inte^(x).(1)/(x^(2))dx- int e^(x) .(1)/(x^(2))dx+C`
`=(e^(x))/(x)+C`
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