If the roots of the equation x^ 3 -12 x^ 2 +39 x-28=0 are in AP, then the common…

Mathematics · JEE Main · NTA Exams — Progression and Series

1. \(d=3\)
2. \(d=-3\)
3. \(d= \pm 3\)
4. None of these

Answer

(C) d= 3

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