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Black Book Advanced Problems in MathematicsMathematicsDeterminants

If D₁ = vmatrix a₁ & b₁ & c₁ a₂ & b₂ & c₂ a₃ & b₃ & c₃ vmatrix and D₂ = vmatrix a₁ + 2a₂ + 3a₃ & 2a₃ & 5a₂ b₁ + 2b₂ + 3b₃ & 2b₃ & 5b₂ c₁ + 2c₂ + 3c₃ & 2c₃ & 5c₂ vmatrix then D₂ / D₁ is equal to:

Options

  1. A10
  2. B-10
  3. C20
  4. D-20

Correct answer

B. -10

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