Cho tập hợp B = $\left( { - \infty ; - 2} \right] \cap \left[ { - 2; + \infty } \right)$. Khi đó tập hợp $B$ là:

$\left[ {1;2} \right]$

$\left[ {1;2} \right)$

$\left( {1;2} \right]$

$\left( {1;2} \right)$

$\emptyset$

$\left[ {0;5} \right]$

$\left[ {3;4} \right]$

$\left\{ {3;4} \right\}$

$\left[ {4; + \infty } \right)$

$\left( {4; + \infty } \right)$

$\emptyset$

$\mathbb{R}$

$\mathbb{R}\backslash \left[ { - 3; + \infty } \right).$

$\mathbb{R}\backslash \left[ { - 3;3} \right).$

$\mathbb{R}\backslash \left( { - \infty ;3} \right).$

$\mathbb{R}\backslash \left( { - 3;3} \right).$

$B \cap C = {\rm{[}}2;3)$

$A \cap C = (0;2]$

$A \cup B = R\backslash \left\{ 2 \right\}$

$B \cup C = (0; + \infty )$

$A \cup B = \left[ { - 2;5} \right]$ .

$A \cap B = \left[ {0;4} \right]$

$A\backslash B = \left[ {-2;0} \right]$

$B\backslash A = \left[ {4;5} \right]$