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Integrate the Functions X (Log X)2 - Mathematics

Integrate the functions x (log x)2

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Solution 1

Solution 2

I = `intx(log x)^2 dx`

Taking `(log x)^2` as first function and x as second function and integrating by parts, we obtain

I=log x 2∫xdx-∫ddxlog x 2∫xdxdx=x22log x 2-∫2log x .1x.x22dx=x22log x 2-∫xlog x dx

Again integrating by parts, we obtain

I = x22logx 2-log x ∫x dx-∫ddxlog x ∫x dxdx=x22logx 2-x22log x -∫1x.x22dx=x22logx 2-x22log x +12∫x dx=x22logx 2-x22log x +x24+C

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APPEARS IN

NCERT Class 12 Maths
Chapter 7 Integrals
Q 14 | Page 327
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