ISRO Mechanical & Aerospace 2009 - Question 72

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The value of the determinant | 1 1 1 1 | 1 1+a 1 1 | 1 1 1+b 1 | 1 1 1 1+c | is

  • A. -abc
  • B. abc
  • C. 1
  • D. 0

Answer: A. -abc

Explanation: Actually standard determinant for diagonal additions is abc.

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