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Integrals
easy
0:00.0
If
∫
1
k
2
x
d
x
=
8
\int_1^k 2x dx = 8
∫
1
k
2
x
d
x
=
8
, and
k
>
1
k > 1
k
>
1
, what is the value of
k
k
k
?
A
3
3
3
B
9
9
9
C
8
8
8
D
4
4
4
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