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If the equation x^2-(2 + m)x + (m2-4m +4...

If the equation `x^2-(2 + m)x + (m2-4m +4) = 0` has coincident roots, then

A

m = 0, 1

B

m = 2/3, 1

C

m = 0, 2

D

m = 2/3, 6

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The correct Answer is:
D
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