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∫ex(1x-1x2)dx = ______ + c.

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Question

`inte^x(1/x - 1/x^2) dx` = ______ + c.

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Solution

`inte^x(1/x - 1/x^2) dx = bbunderline(e^x/x)` + c

स्पष्टीकरण:

`d/dx(e^x/x) = (e^x.x - e^x.1)/x^2`

= `e^x((x - 1)/x^2)`

= `e^x(1/x - 1/x^2)`

म्हणून,

`inte^x(1/x - 1/x^2) dx = (e^x/x)` + c

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