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[" If "a" and "b" can take values "1,2,3,4" .Then the number of the equations of the form "],[ax^(2)+bx+1=0" having real roots is "],[" (a) "10],[" (b) "7],[" (c) "6],[" (d) "12]

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If a and b can take values 1,\ 2,\ 3,\ 4 . Then the number of the equations of the form a x^2+b x+1=0 having real roots is (a) 10 (b) 7 (c) 6 (d) 12

If a and b can take values 1,\ 2,\ 3,\ 4 . Then the number of the equations of the form a x^2+b x+1=0 having real roots is (a) 10 (b) 7 (c) 6 (d) 12

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[ If a,b in{1,2,3,4} the number of quadratic equation of the form ax^(2)+bx+c=0 which have non-real complex roots is: [ (a) 27, (b) 35 (c) 52, (d) 56]]