Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Integrals
hard
0:00.0
Evaluate
∫
0
∞
x
3
e
−
x
2
d
x
\int_0^{\infty} x^3 e^{-x^2} dx
∫
0
∞
x
3
e
−
x
2
d
x
.
A
1
1
1
B
0.5
0.5
0.5
C
2
2
2
D
π
\sqrt{\pi}
π
Submit Answer