Question

When b ^ 2 = 4ac , the nature of roots of the quadratic equation is a) Real and Distinct b) Real and Equal c) Imaginary d) All the above​

Answer 1

(i) If b2 – 4ac is a perfect square, the roots are rational and unequal. (ii) If b2 – 4ac is positive but not perfect square, the roots are irrational and unequal. If D = 0, i.e., b2 – 4ac = 0; the roots are real and equal.

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