If roots of the quadratic equations of a x^ 2 +b x+c=0 are equal, then which of the…
Physics · NEET · NTA Exams — Basic Mathematics for Physics
If roots of the quadratic equations of \(a x^{2}+b x+c=0\) are equal, then which of the following options is correct?
- ac = 0
- b = 0
- b2 = 4ac
- b2 + 4ac = 0
Answer
(C) b 2 = 4ac
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