Question

va roooggg ajutorrr ex 7​

Answer 1

Răspuns:

A={x apartine N| | x≤5} => x={0,1,2,3,4,5} => A={0,1,2,3,4,5}

B={y | y=x+2, x aparține mulțimii A}

daca x=0 => y=0+2=2

x=1 => y=1+2=3

x=2 => y=2+2=4

x=3 => y=3+2=5

x=4 => y=4+2=6

x=5 => y=5+2=7

=> y={2,3,4,5,6,7} => B={2,3,4,5,6,7}

A intersectat cu B={2,3,4,5}

A U B={0,1,2,3,4,5,6,7}

A-B={0,1}

B-A={6,7}

SPER CĂ TE-AM AJUTAT!! :))