Mathematics, 28.06.2020 02:01 johngayden46

2.In quadratic equation ax2 + bx + c = 0, if discriminant is D= b2 - 4ac, then roots of the quadratic equation are (choose the correct alternative)

(1) Real and distinct, if D > 0

(2) Real and equal (i. e., repeated roots), if D = 0.

(3) Non-real (i. e. imaginary), if D< 0

(4) All of the above are correct

Answers: 2

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2.In quadratic equation ax2 + bx + c = 0, if discriminant is D= b2 - 4ac, then roots of the quadrati...