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If the roots of a quadratic equation are equal, then A) b2 = 4ac B) b2 – 4ac < 0 C) b2 – 4ac > 0 D) b2 – 4ac = 0 |
Answer» Correct option is (A) b2 = 4ac If roots of quadratic equation \(ax^2+bx+c=0\) are equal, then \(b^2-4ac=0\) or \(b^2= 4ac.\) Correct option is A) b2 = 4ac |
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