Question

ajutați-mă la mateeeeee​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

A={1,3,5,7} B={2,4,5,7} C={4,6,7,9}

b)

A∪B={1,2,3,4,5,7}

A∪C={1,3,4,5,6,7,9}

B∪C={2,4,5,6,7,9}

A-B={1,3}

A-C={1,3,5}

B-C={2,5}

A∪B∪C={1,2,3,4,5,6,7,9}

A∩B∩C={7}

(A∪C)-B={1,3,4,5,6,7,9} -{2,4,5,7}={1,3,6,9}