Integrate (1-tanx)dx(1+tanx)
Aparna Tiwari , 14 Years ago
Grade 12
Integral Calculus> indefintie integrals
1 Answers
vikas askiitian expert
Last Activity: 14 Years ago
I=(1-tanx)/1+tanx) dx
I={cosx-sinx/sinx+cosx}dx
on putting sinx+cosx=t
(cosx-sinx)dx = dt
I=dt/t
=logt +c
=logsinx+cosx + c
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