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Nature of Roots

If the discri...

Question

If the discriminant of a quadratic equation is $D = 0,$ then which of the following is true.

A

α = β

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B

α - β = 0

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C

α + β = 2 α

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D

α + β = 0

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Solution

The correct options are
A $α - β = 0$
B $α = β$
When the discriminant of a quadratic equation is $0$ that means it has real and equal roots.

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