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`int(logx) /((1+x)^2)dx` का मान ज्ञात कीजिए ।

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माना `I=int(logx)/((x+1)^2)dx=int(x+1)^(-2)logx dx `
अब logx को पहला पद मानकर खण्डश : समाकलन करने पर
`I=logx((x+1)^(-1))/(-1)-int((x+1)^(-1))/(-1).1/xdx`
`=(-logx)/((x+1))+int(dx)/(x(x+1))=(-logx)/(x+1)+int[1/x-1/(x+1)]dx`
`=-(logx)/((x+1))=logx-log(x+1)+c`
`-(logx)/((x+1))+log[x/(x+1)]+c`

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