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let tan^-1x=t also tant=x
1/(√1+x^2)dx=dt
question becomes integration of
tdt/(1+tan^2t)
=tcos^2tdt...use ILATE method take t as first function
1/(√1+x^2)dx=dt
question becomes integration of
tdt/(1+tan^2t)
=tcos^2tdt...use ILATE method take t as first function
AlokSingh111:
eshe bhi solve kro aap
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