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If int(6x+3)/(sqrt(3-6x-9x^(2)))dx=-2/3f...

If `int(6x+3)/(sqrt(3-6x-9x^(2)))dx=-2/3f(x)+g(x)+c`
Then the domain of the function `f+g` is `[a,b]` then `|a/b|=`

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