Diagnostic Test 2

$\left\{ x\in\mathbb{R}:x\neq 3 , x\neq-1\right\}$

$\left\{ x\in\mathbb{R}:x\neq 1 , x\neq-2\right\}$

$\left\{ x\in\mathbb{R}:x\neq -1 , x\neq-2\right\}$

$\left\{ x\in\mathbb{R}:x\neq 1 , x\neq-3\right\}$

$\left\{ x\in\mathbb{R}:x\neq 1 , x\neq2\right\}$