Question

[COROANA]Calculați:A reunit B,A intersectat B,A\B,B\A,AxB,BxA știind că:
a)A={1,5,6,9,12}
B={3,5,7,9,15}​

Answer 1

A U B={1,3,5,6,7,9,12,15}

A Intersectat B={5,9}

A\B={1,3,6,7,12}

B\A={3,5,7,15}

AxB={(1,3);(5:5);(6;7);(9;9);(12;15)}

BxA={(3;1);(5;5);(7:6);(9;9);(15;12l}