Question

Fie multimile A={x∈N |x<3} B={x∈N*|x<3} C={x∈N*|1

a)AUC

b)B∩C

c)B\A

d)B\C

e)(A∩C)\B

f)(A\C)UB

g)A∩(C\B)

h)CU(A\B)

Answer 1

Răspuns:

A={0 1 2}

B={1 2}

C={1}

a {0 1 2}

b {1}

c { multimea vida}

d {2}

e { multimea vida}

f {0 1 2}

g { multimea vida}

h {0 1}

Answer 2

Răspuns:

A= {0,1,2}

B={1,2}

C= {1}

a) AUC= {0,1,2}

b)B intersectat cu C= {1}

c) B\A={ multimea vida ( dar tu notezi un 0 taiat)

d) B\C={ tot mulțimea vida adica 0 taiat}

e)( A intersectat cu C) \B={1}\ {1,2}={0}

f)(A\C) U B={0,2} U {1,2}= {0,1,2}

g) A intersectat cu(C\B)= {0,1,2} intersectat {0} = {0}

h) C U(A\B)= {1} U {0}= {1,0}