1.

intsinx/(1+sinx)dx

Answer»

SOLUTION :`I=intsinx/(1+sinx)DX`
=`INT(1-1/(1+sinx))dx`
=`int[1-((1-sinx))/cos^2x]dx`
=`int(1-sec^2x+secxtanx)dx`
= x-tanx+secx+c


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