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int(dx)/((1+sqrt(x))sqrt((x-x^2)))is equ...

`int(dx)/((1+sqrt(x))sqrt((x-x^2)))`is equal to (a)`(1+sqrt(x))/((1-x)^2)+c` (b) `(1+sqrt(x))/((1+x)^2)+c` (c)`(1-sqrt(x))/((1-x)^2)+c` (d) `(2(sqrt(x)-1))/(sqrt((1-x)))+c`

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