MCQ
If A = [5, 6, 7] and B = [7, 8, 9] then $\text{A } \cup \text{ B}$ is equal to.
  • A
    [5, 6, 7]
  • B
    [5, 6, 7, 8, 9]
  • C
    [7, 8, 9]
  • D
    None of these

Answer

  1. [5, 6, 7, 8, 9]

Solution:

Given A = [5, 6, 7] and B = [7, 8, 9]

then $\text{A } \cup \text{ B}=[5, 6, 7, 8, 9]$

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