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If a, b in {1, 2, 3, 4}, then the number...

If `a, b in {1, 2, 3, 4}`, then the number of quadratic equations of the form `ax^(2)+bx+1=0`, having real roots is :

A

6

B

7

C

8

D

none of these

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The correct Answer is:
B
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