Question

fie mulțimile:A={x€|N|4≤x7},B={y€|N|y=x+2,x€A},C={z€|N|z=2x,x€A}.
va rog e urgent ​

Answer 1

A = { x € N |4 ≤ x ≤ 7 } :

A =  { 4, 5, 6, 7 }

B = { y € N | y=x+2, x€A }:

B=  { 6, 7, 8, 9 }

C = { z € N | z=2x, x€A} :

C= { 8, 10, 12, 14 }.