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Q. |
Quadratic eqn ax 2+ bx + c = 0 has equal roots if |
A. | b - 4ac < 0 |
B. | b - 4ac > 0 |
C. | b - 4ac = 0 |
D. | b - 4ac = 1 |
Answer» C. b - 4ac = 0 |
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