dy/dx = (2x +y -1) / ( 4x -2y +1) , x= X +1 , y = Y-1 ,, how to make it into differential equation ? my ans is not same as the ans given . P/s : in the second photo , it's lnx +c , sorry for the blur photo
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Well the equation in the picture is not the one in the post. So which are you talking about?
In your working you dropped a minus sign when integrating $3 \over 2(1-v)$.
Originally Posted by Archie In your working you dropped a minus sign when integrating $3 \over 2(1-v)$. after doing the correction , my final asn become (3/4) ln ( (x+y ) / x ) - (1/4 )ln ( (x+y-2 ) / x ) = ln x + c , which is still wrong
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