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Evaluate: (i)int0^4 1/(sqrt(x^2+2x+3))dx...

Evaluate: (i)`int_0^4 1/(sqrt(x^2+2x+3))dx`

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`(i)∫_0^4(dx)/(sqrt(x^2+2x+3))`
`=∫_0^4(dx)/(sqrt((x+1)^2+(√2)^2))`
`=[log((x+1)+sqrt(x^2+2x+3))_0^4`
`={log|5+sqrt(27)|−log|1+sqrt(3)|}`.
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