Question

1. Wyznacz zbiory AuB, AnB, A\B, B\A gdy:

a) A={0,1,2}, B={4,5,6,7} ;

b) A={1,2,3,4,5,6,7}, B={1,3,5,7,8,10} ;

c) A={-4,-3,-2,-1}, B={-1,1,-2,2,-3,3,-4,4}.

Answer 1

a) AuB {0,1,2,4,5,6,7}

    AnB nic

    A\B {0,1,2}

    B\A {4,5,6,7}

b) AuB {1,2,3,4,5,6,7,8,10}

    AnB {1,3,5,7}

    A/B {2,4,6}

    B\A {8,10}

c) AuB {-4,-3,-2,-1,1,2,3,4}

    AnB {-4,-3,-2,-1}

    A\B nic

    B\A {1,2,3,4}