. A quadratic equation has no real roots, if :
A quadratic equation ax2 + bx + c = 0 has no real roots, if :
A. b2 – 4ac = 0
B. b2 > 4ac
C. b2 < 4ac
D. b2 + 4ac = 0
Answer ||| C
It is a universal fact that when b2 < 4ac then always quadratic equation doesn’t have real roots.
Therefore , Option C.