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JAMB Mathematics 2015 Objective — Question 12

Question 12 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2015 Objective paper, with the correct answer and a full explanation.

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If P = [[6,4],[5,7]], then |P| is

  • A. 32
  • B. 16
  • C. 18
  • D. 22Correct

Explanation

|P| = (6×7) − (4×5) = 42 − 20 = 22.

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