Question

va rog !!! frumos !!
Dacă nu știti ce p si i ala N îndeamnă par si impar va roggg !!!

Answer 1

O sa notez multimea vida cu ()
$N\cup N^{*}=N$
$N\cap N^{*}=N^{*}$
$N\setminus N^{*}=(0)$

$N\cup N_{p}=N$
$N\cap N_{p}=N_{p}<span>$
$N\setminus N_{p}=N_{i}$

$N\cup N_{i}=N$
$N\cap N_{i}=N_{i}<span>$
$N\setminus N_{i}=N_{p}$

$N_{p}\cup N_{i}=N$
$N_{p}\cap N_{i}=()<span>$
$N_{p}\setminus N_{i}=N_{p}$
$N_{i}\setminus N_{p}=N_{i}$

$N\cup ()=N$
$N\cap ()=()$


$N^{*}\cup ()=N^{*}$
$N^{*}\cap ()=()$

$N_{i}\cup ()=N_{i}$
$N_{i}\cap ()=()$

$N_{p}\cup ()=N_{p}$
$N_{p}<span>\cap ()=()$