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If int((2x+3)dx)/(x(x+1)(x+2)(x+3)+1)=C-...

If `int((2x+3)dx)/(x(x+1)(x+2)(x+3)+1)=C-(1)/(f(x))` where f(x) is of the form of `ax^(2)+bx+c`, then(a+b+c) equals to …….

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