Can substitution be used to solve this homogeneous DE?

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The discussion focuses on solving the homogeneous differential equation represented by the expression xcos(y/x)(ydx+xdy) = ysin(y/x)(xdy-ydx). The user initiates the solution by substituting y with vx and subsequently derives the equation dx/x = [(vtanv-1)/2v]dv. Despite this simplification, the user encounters difficulties in finding a suitable integral for the transformed equation. Assistance is sought to progress further in solving the differential equation.

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abrowaqas
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xcos(y/x)(ydx+xdy) = ysin(y/x)(xdy-ydx)

I have started to it by
Letting
y=vx
And then
Find it's derivative put their in equation
. But the equation afterwards cannot come for finding suitable integral.
Kindly help.
 
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The equation becomes dx/x =[(vtanv-1)/2v]dv on simplification.
 

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