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The minimum value of f(a)=(2a^2-3)+3(3...

The minimum value of
`f(a)=(2a^2-3)+3(3-a)+4` is

A

`15/2`

B

`11/2`

C

`(-13)/2`

D

`71/8`

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Verified by Experts

The correct Answer is:
D
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