Question

Fie multimile A = { x = | x = 2n , n apartine N*} si B= { x | x = 2n + 1 , n apartine N}

a) Scrieti cate 3 elemente din fiecare mulțime.

b) Calculator A U B

Answer 1

A={2×1; 2×2; 2×3;2×4.....}multime infinita
A={2,4,6,8....}

B={2×1+1;2×2+1; 2×3+1; 2×0+1......}multime infinita
B={1,3,5,7......}

a)A={2,4,6}
B={1,3,5}

b)A U B={1,2,3,4,5,6,7,8}