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fie multimea a={xen*|x<8} care are ... elemente

Răspuns :

Salut,

a = { x € |N* | x < 8 }

x < 8 → x € (-∞ ; 8).
x = {1;2;3;4;5;6;7}.

card A = 7.


Succes! :3
A={xeN*|x<8}
x<8 si x
∈N*=>
A={1,2,3,4,5,6,7}
Card A=7