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IF p,q,in { 1,2,3.4} the number of e...

IF p,q,`in` { 1,2,3.4} the number of equation of the form `px^2 +qx +1=0` having real roots is

A

`15`

B

9

C

7

D

8

Text Solution

Verified by Experts

The correct Answer is:
C
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