Evaluate: `int(xsin^(-1)x)/(sqrt(1-x^2))\ dx`

Explanation

` "Putting " sin^(-1)x=t " and " (1)/(sqrt(1-x^(2)))dx=dt, " we get " `
` int(xsin^(-1)x)/(sqrt(1-x^(2)))dx=int tsin t dt=-t cost+sin t+C`
`=-sin^(-1)xcos(sin^(-1)x)+sin(sin^(-1)x)+C`
`=x-(sin^(-1)x)sqrt(1-x^(2))+C`