(1)If cos(x+y)dy=dx then prove that y=tan[(x+y)/2] + c(2)If dy/dx=sin( – InterviewSolution

1.	(1)If cos(x+y)dy=dx then prove that y=tan[(x+y)/2] + c(2)If dy/dx=sin(x+y) then prove that tan(x+y)-sec(x+y)=(x+c)
Answer» (1)If cos(x+y)dy=dx then prove that y=tan[(x+y)/2] + c (2)If dy/dx=sin(x+y) then prove that tan(x+y)-sec(x+y)=(x+c)

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