Question

Dau coroana!.........​

Answer 1

Explicație pas cu pas:

A={3,11,19,27,35,43,51,59,67}

B={1,7,13,19,25,31,37,43,49}

A intersectat cu B={19,43}

A reunit cu B={1,3,7,11,13,19,25,27,31,35,37,43,49,51,59,67}

|A reunit cu B|=16