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Match each factor with its reciprocal.

1. \( (P/A, i, n) \)   2. \( (F/A, i, n) \)   3. \( (F/P, i, n) \)

P. \( (A/F, i, n) \)   Q. \( (A/P, i, n) \)   R. \( (P/F, i, n) \)

  • A.1-Q, 2-P, 3-R
  • B.1-P, 2-Q, 3-R
  • C.1-Q, 2-R, 3-P
  • D.1-R, 2-P, 3-Q

Answer: A

Correct answer: 1-Q, 2-P, 3-R

Each factor is the reciprocal of the one with its symbols reversed, since finding P from A and finding A from P are inverse operations. So \( (P/A) \) pairs with \( (A/P) \), \( (F/A) \) with \( (A/F) \), and \( (F/P) \) with \( (P/F) \). Recognising the pairing halves what has to be looked up.

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