Question

câu 34

Answer 1

A=[-4;-2]; B=(3;7)

\(A\cap B=\varnothing\)

\(A\cup B=\left[-4;-2\right]\cup\left(3;7\right)\)

\(A\text{B}=\left[-4;-2\right]\)

\(B\text{A}=\left(3;7\right)\)

Answer 2

\(A\cap B\) `= {∅}`

\(A\cup B\) `= [-4;-2]` \(\cup\) `(3;7)`

`A`\`B = [-4;-2]`

`B`\`A = (3;7) `