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Integrals
easy
0:00.0
Evaluate
∫
1
3
2
x
d
x
\displaystyle\int_1^3 2x\, dx
∫
1
3
2
x
d
x
.
A
8
8
8
B
4
4
4
C
9
9
9
D
6
6
6
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