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Integrals
hard
0:00.0
Evaluate
∫
0
∞
x
5
e
−
x
2
d
x
\int_0^{\infty} x^5 e^{-x^2} dx
∫
0
∞
x
5
e
−
x
2
d
x
.
A
1
1
1
B
2
2
2
C
1
/
2
1/2
1/2
D
3
/
2
3/2
3/2
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