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If a and b(!=0) are the roots of the equ...

If `a and b(!=0)` are the roots of the equation `x^2+ax+b=0` then the least value of `x^2+ax+b` is

A

`2//3`

B

`9//4`

C

`-9//4`

D

1

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Verified by Experts

The correct Answer is:
C
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