Toán Lớp 6: d)D={x│x=2n+1,x∈N,1<x≤7} e)F={x∈N|x∈Ư(12),x≤6}

d ) D = {x | x = 2x + 1 ; x ∈ N ; 1 < x ≤ 7} => D = {3 ; 5 ; 7} e ) F = {x ∈ N | x ∈ Ư(12) ; x ≤ 6} => F = {1 ; 2 ; 3 ; 4 ; 6} #dtkc

Toán Lớp 6: d)D={x│x=2n+1,x∈N,1

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