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Evaluate: intsqrt((1-sqrt(x))/(1+sqrt(x)...

Evaluate: `intsqrt((1-sqrt(x))/(1+sqrt(x)))`

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`int sqrt((1-sqrt(x))/(1+sqrt(x)))dx`
`=int sqrt((1-sqrt(x))/(1+sqrt(x))*(1-sqrt(x))/(1-sqrt(x)))dx`
`=int (1-sqrt(x))/(sqrt(1-x))dx`
`=int ((1)/(sqrt(1-x))-(x)/(sqrt(x-x^(2))))dx`
`=int((1-x)^(-1//2)+(1)/(2)((1-2x)-1)/(sqrt(x-x^(2))))dx`
`=-((1-x)^(1//2))/(1//2)+(1)/(2)int((1-2x))/(sqrt(x-x^(2)))dx-(1)/(2)int(1)/(sqrt((1)/(4)-(x-(1)/(2))^(2)))dx`
`= -2sqrt(1-x)+sqrt(x-x^(2))-(1)/(2)sin^(-1)(2x-1)+c`
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