KEAM 2014 Math Paper

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Question : 70 of 120

Marks: +1, -0

If the roots of the equation x2+2bx+c=0 are α and β, then b2−c=

(α−β)2
4
(α−β)2−αβ
(α−β)2+αβ
(α−β)2
2
+αβ
(α+β)2
2
+αβ

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