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प्रश्न
Evaluate : `int1/(x(3+logx))dx`
उत्तर
`Let I=int1/(x(3+logx))dx`
`"Put "logx=t`
`1/x dx=dt`
`I=int1/(3+t)dt`
=log|(3+t)|+C
=log|(3+logx)|+C
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