JEE Main 2024 Mathematics question
For α, β ∈ R and a natural number n, let . Then 2A₁₀ − A₈ is
Answer: (A)
Solution
Expanding the determinant (or using R₂ − 2R₁ and R₃ − 3R₁ + ...), the terms in r cancel and for every r. So 2A₁₀
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