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![](https://rs.olm.vn/images/avt/0.png?1311)
1. E = {chó, thỏ}
2. F = {vịt, ngỗng}
3. G = {mèo, lợn, gà}
4. H = {mèo, chó, lợn, gà, thỏ, vịt, ngỗng}
![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(M=\left\{x\inℕ|4x\le16\right\}\)
\(\Rightarrow M=\left\{x\inℕ|x\le4\right\}\)
\(\Rightarrow M=\left\{1;2;3;4\right\}\)
b) \(N=\left\{x\inℕ|15< 3x\le33\right\}\)
\(\Rightarrow N=\left\{x\inℕ|5< x\le11\right\}\)
\(\Rightarrow N=\left\{6;7;8;9;10;11\right\}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) Ta có: \(M=\left\{x\in N|4x\le16\right\}\)
\(\Rightarrow4x\le16\)
\(\Rightarrow x\le4\)
Mà: \(x\in N\Rightarrow x\ge0\)
\(\Rightarrow M=\left\{0;1;2;3;4\right\}\)
b) Ta có: \(N=\left\{x\in N|15< 3x\le33\right\}\)
\(\Rightarrow15< 3x\le33\)
\(\Rightarrow\dfrac{15}{3}< x\le\dfrac{33}{3}\)
\(\Rightarrow5< x\le11\)
\(\Rightarrow N=\left\{6;7;8;9;10;11\right\}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, C = {2;4;6}
b, D = {5;9}
c, E = {1;3;5}
d, F = {1;2;3;4;5;6;7;8;9;10;11}
![](https://rs.olm.vn/images/avt/0.png?1311)
a, C = {2;4;6}
b, D = {7;9}
c, E = {1;3;5}
d, F = {1;2;3;4;5;6;7;9}
17 nha bn, dung 100% luon, tick mik nhe