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A = { 19 ; 20 }
B = { 1 ; 2 ; 3 }
C = { 35 ; 36 ; 37 ; 38 }
a) A = { 19 ; 20 }
b) B = { 1 ; 2 ; 3 }
c) C = { 35 ; 36 ; 37 ; 38 }
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. \(C=\left\{40\right\};D=\left\{32;34;35;36;38;40;42;44;45;46;48\right\}\)
A = {19 ; 20}
B = {1 ; 2 ; 3}
C = {35 ; 36 ; 37 ; 38}
\(A=\left\{19;20\right\}\)
\(B=\left\{1;2;3\right\}\)
\(C=\left\{35;36;37;38\right\}\)
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) A= { 19 ; 20 }
b) B = { 3 ; 2 ; 1 }
c) C = { 35 ; 36 ; 37 ; 38 }
A={19;20}4
B={1;2;3;4}
C={35;36;37;38}
\(A=\left\{19;20\right\}\)
\(B=\left\{1;2;3;\right\}\)
\(C=\left\{35;36;37;38\right\}\)