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Mathematics
Problem
Let
E
(
x
)
=
∫
1
x
3
(
2
t
+
1
)
d
t
E(x)=\displaystyle \int_{1}^{x^{3}} (2t+1)\,dt
E
(
x
)
=
∫
1
x
3
(
2
t
+
1
)
d
t
. What is the value of
E
′
(
2
)
E'(2)
E
′
(
2
)
? a) 68 b) 204 c) 60 d) 102
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