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1/\(A=\left\{21;24;27;30;33;36;39\right\}\)
\(B=\left\{30;35;40\right\}\)
\(C=\left\{32;36;40\right\}\)
2/\(D=\left\{30\right\}\)\(;\)\(E=\left\{40\right\}\)\(;\)\(F=\left\{36\right\}\)
a/
\(x\in\left\{0;1;2;3;4;5\right\}\)
b/
\(x\in\left\{6;7;8;9\right\}\)
c/
\(x\in\left\{7;8;9;10;11;12\right\}\)
d/
\(x\in\left\{8;9;10;11;12\right\}\)
e/
\(x\in\left\{7;8;9;10;11;12\right\}\)
a)A={0; 1; 2; 3; 4; 5}
b)B={6; 7; 8; 9}
c)C={7; 8; 9; 10; 11; 12}
d)D={8; 9; 10; 11}
e)E={7; 8; 9; 10; 11; 12}
1. \(A=\left\{35;40;45\right\}\)và \(B=\left\{32;34;36;38;40;42;44;46;48\right\}\)
2. \(F=\left\{35\right\}\subset A;G=\left\{40\right\}\subset A;H=\left\{45\right\}\subset A;I=\left\{35;40\right\}\subset A;J=\left\{35;45\right\}\subset A;\)\(K=\left\{40;45\right\}\subset A;A=\left\{35;40;45\right\}\subset A\)
3. \(C=\left\{40\right\};D=\left\{32;34;35;36;38;40;42;44;45;46;48\right\}\)
\(B=\left\{2;3;4;5;6;7;8\right\}\)
\(P=\left\{0;1;2;3;4;5;6\right\}\)
\(Q=\left\{3;4;5;6;7;8\right\}\)
a) \(A=\left\{-6;-5;-4;-3;-2\right\}\)
b) \(B=\left\{-4;-3;-2;-1;0;1;2\right\}\)
c) \(C=\left\{-7;-6;-5;-4;-3;-2-1\right\}\)
d) \(D=\left\{-2;-1;0;1;2;3;4;5;\right\}\)
a, A= (-6;-5;-4;-3;-2)
b,B=(-4;-3;-2;-1;0;1;2)
c, C=(-7;-6;-5;-4;-3;-2;-1)
d,D=(-2;-1;0;1;2;3;4;5)