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dx/(3-2x-x2)

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dx/(3-2x-x2)

    • Posted by Shruti Kumari 6 years, 2 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Dileep Kumar 6 years, 2 months ago

    dx/(3-2x-x^2)=  -dx/(x^2+2x-3)

                            = -dx/(x^2-x+3x-3)

                            = -dx/(x-1)(x+3)

                           = -{dx/4(x-1) - dx/4(x+3) }

                           = -{log (x-1) - log (x +3 )}/4

                           =  {log (x +3)  -  log (x -1) }/4

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