Given that A = { 1, 2, 3, 4, 5 } and B = { 3, 4, 5, 6, 7 }, find n( A union B ).

1. (a)Given that A = { 1, 2, 3, 4, 5 } and B = { 3, 4, 5, 6, 7 }, find n( A union B ).[1]
2. (b)xi = { p, q, r, ... } On the Venn diagram, write each of the letters p, q, and r in its appropriate subset, given that p is an element of X intersection Y intersection Z, q is an element of X' intersection Y' intersection Z', r is an element of (X union Y)' intersection Z. [Figure X.X][3]

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