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Consider the quadratic polynomial f(x) =...

Consider the quadratic polynomial `f(x) =x^2/4-ax+a^2+a-2` then (i) If the origin lies between zero's of polynomial, then number of integral value(s) of 'a' is (ii) if `a` varies , then locus of the vertex is :

A

1

B

2

C

3

D

more than 3

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The correct Answer is:
B
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