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TMUA 2018 · Paper 2 · Question 1
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The function f is given, for
x
>
0
, by
f
(
x
)
=
2
x
x
3
−
4
x
Find the value of
f
′
(
4
)
.
A
3
B
9
C
9.5
D
12
E
39.5
F
88
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