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

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

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Verified by Experts

I=`int(2x+3)/(sqrt(x^2+4x+1))dx`
I=`int(2x+4-1)/(sqrt(x^2+4x+1))dx`
I=`int(2x+4)/(sqrt(x^2+4x+1))dx-int 1/(sqrt(x^2+4x+1))dx`
=`int dt/sqrt(t)-int 1/(sqrt((x+2)^2-(sqrt(3)^2))dx`
=`2sqrt(t) ​−log|(x+2)+sqrt(x^2+4x+1)| ​​+C`
...
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