1.

`(x+1)/(sqrt(x^(2)+1))`

Answer» Correct Answer - `sqrt((x^(2)+1))+log[x+sqrt((x^(2)+1))]`
`int(x+1)/(sqrt(x^(2)+1)).dx=(1)/(2)int(2x)/(sqrt(x^(2)+1))dx+int(dx)/(sqrt(x^(2)+1^(2)))`


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