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oh, yes, didnt thhink of by parts integration.<br />
ok, thanks aburr...<br />

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oh, yes, didnt thhink of by parts integration.
ok, thanks aburr...


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i am working on a problem and i am stuck on the integral of ( sqrt (1+4x^2 )) &nbsp;which somehow turns out to <br />
<br />
(3/4 ) * (2x* sqrt(1+4^2) +ln (sqrt(1+4^2))<br />
any idea where this result come from ? 
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i am working on a problem and i am stuck on the integral of ( sqrt (1+4x^2 ))  which somehow turns out to 

(3/4 ) * (2x* sqrt(1+4^2) +ln (sqrt(1+4^2))
any idea where this result come from ? 

evaluate integral of ( sqrt (1+4x^2 ))

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