Question

Fie multimile: A={x|x=2n, n e N} si B={x|x=3n, n e N}. Calculati:A inersectat cu B.

Answer 1

A={o,2,4,....}
B={o,3,6,9,12,15,18...}
AnB={0,6,12,18,...n+6}

Answer 2

A={0,2,4,6...(toate pare)}
B={0,3,6,9...(din 3 in trei)}
AnB{6,12,...(cele ce se repeta in A si B)}