Evaluate ∫0∞e−x2 dx\int_0^{\infty} e^{-x^2} \, dx∫0∞e−x2dx using the Gaussian integral property.
π\sqrt{\pi}π
π2\frac{\sqrt{\pi}}{2}2π
π2\frac{\pi}{2}2π
π/4\pi/4π/4