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Thread: transormation of function

  1. #1
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    transormation of function

    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
    transormation of function-0741.jpgtransormation of function-0743.jpg
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  2. #2
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    Re: transormation of function

    Well the equation in the picture is not the one in the post. So which are you talking about?
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  3. #3
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    Re: transormation of function

    In your working you dropped a minus sign when integrating $3 \over 2(1-v)$.
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    Re: transormation of function

    Quote Originally Posted by Archie View Post
    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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