Question

este element al multimii A ={ x / x=4n+3 ,n ∈ N,n

Answer 1

pt n=0 x=3 pt n=1 x=7 pt n=2 x=11 pt n=3 x=15 pt n=4 x=19 pt n=5 x=23 pt n=6 x=27 pt n=7 x=31..............pt n=n-1 x=4n-1 pt n=n x=4n+3 se observa ca xcreste cu 4 A={3,7,11,15,19,23,27,31,..........,4n-1,4n+3}sunt n+1 termeni