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The value of 'c' of Rolls's throrem is a...

The value of 'c' of Rolls's throrem is applicable to the function `f(x)=2x^3-5x^2-4x+3,"x"in[1//2,3]` is

A

2

B

`-1/3`

C

`-2`

D

`2/3`

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A
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