{x∈R:−6≤x≤−2\{x \in \mathbb{R}:-6 \leq x \leq-2{x∈R:−6≤x≤−2 অথবা 2≤x≤6}2 \leq x \leq 6\}2≤x≤6}
{x∈R:−6≤x≤6}\{x \in \mathbb{R}:-6 \leq x \leq 6\}{x∈R:−6≤x≤6}
{x∈R:−6≤x≤6}−{x∈R:−2<x<2}\{x \in \mathbb{R}:-6 \leq x \leq 6\}-\{x \in \mathbb{R}:-2<x<2\}{x∈R:−6≤x≤6}−{x∈R:−2<x<2}
{x∈R:−6<x<−2\{x \in \mathbb{R}:-6<x<-2{x∈R:−6<x<−2 অথবা 2<x<6}2<x<6\}2<x<6}