# sets, question 2, grade 10

29/06/2016

2)

Given the two sets: E = {1,2,3,4,5,6,7,8,9}

and D = {0,1,2,3,4}

1)Determine A ; a subset of E ; knowing that card(A) = 4 and

$\overline A =\{1,3,5,7,9\}$ .

2) Find a subset B of E s.t.  $B\subset A and\,B \cap A =\{2,4\}$ .

3) Verify that  $\overline A\cup \overline B=\overline B$

4) Consider a set C= $\{x \in {\Bbb N}/x={n^2}\& n \in D\}$ .

i) Write C in Roster's notation.

ii) Determine  $P(C \cap D)$