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AP EAMCET2004MathematicsDeterminants

The value of | array lll 1990 & 1991 & 1992 1991 & 1992 & 1993 1992 & 1993 & 1994 array | is

Options

  1. A1992
  2. B1993
  3. C1994
  4. D0

Correct answer

D. 0

Step-by-step solution

Let A= | array lll 1990 & 1991 & 1992 1991 & 1992 & 1993 1992 & 1993 & 1994 array | Applying aligned C₂ & C₂-C₁, C₃ C₃-C₂ & = | array ccc 1990 & 1 & 1 1991 & 1 & 1 1992 & 1 & 1 array | & =0[ two columns are identical ] aligned

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