n(A) = 16, n(B) = 22 and n(A cap B) = 9. Find n(A cup B).

  1. 29
  2. 7
  3. 47
  4. 38
Answer

A) 29

n(A cup B) = n(A) + n(B) - n(A cap B) = 16 + 22 - 9 = 29. SLO M-09-A-12 · Understanding

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