Evaluate :∫(sec^2x)/(3+tanx) dx.
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put tanx=t
sec^2xdx=dt
¡={dt/(3+t)
=log|3+t|
=log|3+tanx| +C
sec^2xdx=dt
¡={dt/(3+t)
=log|3+t|
=log|3+tanx| +C
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