- #1
Moneer81
- 159
- 2
Hello,
the following integral confused me a little bit:
[tex] \int_{0}^{\infty} e ^ {-2.x^2} dx [/tex]
The answer is [tex] \sqrt \frac{\pi}{8} [/tex]
and I have no idea where this answer came from. Do I start by saying let
[tex] u = e^ {2x^2} [/tex] ?
the following integral confused me a little bit:
[tex] \int_{0}^{\infty} e ^ {-2.x^2} dx [/tex]
The answer is [tex] \sqrt \frac{\pi}{8} [/tex]
and I have no idea where this answer came from. Do I start by saying let
[tex] u = e^ {2x^2} [/tex] ?
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