a) C={1;3}
b) D={5;7}
c) E= {6;8;9}
d) K={1;5;3;7;6;8;9}
Học tốt
\(C=\left\{1;3\right\}\)
\(D=\left\{5;7\right\}\)
\(E=\left\{6;8;9\right\}\)
\(K=\left\{1;3;5;7;6;8;9\right\}\)
a) C = {1,3}
b) D = {5,7}
c) E = {6,8,9}
d) K = {1,3,5,6,7,8,9}
k nha
a)C={1;3}
b)D={5;7}
c)E={6,8,9)
tk nha~~