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JEE Advanced Mathematics question

MathematicsDeterminantsJEE Advanced

If are nonreal numbers satisfying then the value of

is equal to

Answer: (B)

Solution

are , so , , , . makes every entry of equal to :

Δ = λMissing \end{vmatrix}\begin{vmatrix} 1 & 1 & 1 α & λ+β & 1 β & 1 &

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Question ID VK-108260