Question

A = {1, 3, 5, 7, 9}

B = {2, 4, 6, 8, 10}
C = {1, 5, 6, 7, 9}
A ∩ (B ∪ C) = ?

a {1, 5, 7, 9}
b {1, 5, 6, 7, 9}
c {}

Answer 1

The
`\cap` symbol means intersection, so everything that is in both sets, and the
`\cup` symbol means union, so the two sets combined.


`B \cup C = \{1, 2, 4, 5, 6, 7, 8, 9, 10\} = S`

`A \cap S= \{1, 5, 7, 9\}`

So the answer is A.