2025 IGCSE 0580 October/November P21 Q10

2025 IGCSE 0580 October/November P21 Q10

2 marks

\(\mathcal{E}=\{n:n\text{ is an integer and}\hspace{0.5em}1\le n\le8\}\)

\(A=\{\text{factors of}\hspace{0.5em}12\}\)

\(B=\{\text{odd numbers}\hspace{0.15em}\}\)

Find

  1. \(A\cap B\)[1]
  2. \(n(A^{\prime}\cup B)\).[1]

Solution:

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Answer:(a) \(\{1,3\}\). (b) \(5\).

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