Integration Question: int [ sqrt(1 + x^2) ] dx

[Shutterbug424]

I'm trying to integrate the square root of (1+x^2)

Can you point me in the right direction?

 

[Deleted member 4993]

Re: Integration Question

I'm trying to integrate the square root of (1+x^2)

Can you point me in the right direction?

substitute:

\(\displaystyle x = \tan(\theta)\)