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The function f(x) = int1^(x) [2(t-1)(t-2...

The function `f(x) = int_1^(x) [2(t-1)(t-2)^(3)+3(t-1)^(2)(t-2)^(2)] dt` attains its maximum at x =

A

1

B

2

C

3

D

4

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