- #1
karush
Gold Member
MHB
- 3,269
- 5
Evaluate $\displaystyle\int_0^\infty e^{-\dfrac{x^2}{2}} dx$
ok first reponse is use IBP but can we use $e^u$ where $u=-\dfrac{x^2}{2}$ ot $u=\dfrac{x}{\sqrt{2}}$
ok first reponse is use IBP but can we use $e^u$ where $u=-\dfrac{x^2}{2}$ ot $u=\dfrac{x}{\sqrt{2}}$