Question

fie multimile:A={3,4,5},B={5,6,7,8},C={2,4,8},K={1,3,5,7}.Aflati: a)AUB,b)AUK,c)BUC,d)CUK,e)A UintorsB,f)C Uintors B,g)B Uintors K,h)C Uintors K,i)A\K,j)C\A,k)K\A,k)K\B,l)K\A​

Answer 1

Răspuns:

Explicație pas cu pas:

A={3,4,5}, B={5,6,7,8}, C={2,4,8}, K={1,3,5,7}

A U B = {3, 4, 5, 6, 7, 8}

A U K = {1, 3, 4, 5, 7}

B U C = {2, 4, 5, 6, 7, 8}

C U K = {1, 2, 3, 4, 5, 7, 8}

A ∩ B = {5}

C ∩ B = {8}

B ∩ K = {5, 7}

C ∩ K = ∅

A={3,4,5}, B={5,6,7,8}, C={2,4,8}, K={1,3,5,7}

A \ K = {4}

C \ A = {2, 8}

K \ A = {1, 7}

K \ B = {1, 3}

la j ai scris la fel ca la k