Question

Answer 1

Bài 2:

\(A=\left\{0;1;2;3;4\right\}\)

\(B=\left\{1;2;3;4\right\}\)

Bài 3: 

a) \(5\notin M;9\in M\)

b)C1:  \(M=\left\{7;8;9\right\}\)

C2: \(M=\left\{x\in N|6< x< 10\right\}\)

Answer 2

2.

A=\(\left\{0,1,2,3,4\right\}\)

B=\(\left\{1,2,3,4\right\}\)

3.

a.5∈M , 9∉M

b.M=\(\left\{7,8,9\right\}\)

   M=\(\left\{x\in M;6< x< 10\right\}\)

Answer 3

Bài 2:

Bài 3: 

a) 

b)C1:  

C2: M={x∈N|6<x<10}