Question

3 ≤ х + 1 < 5. помогите

Answer 1

Ответ:

3 ≤ х + 1 < 5

х₁=2   х₂=3

Проверяем:

3≤ 3< 5

3≤ 4< 5

x ∈ [2;4)

Answer 2

3 ≤ x + 1 < 5
$\left \{ {{x+1\geq 3} \atop {x+1 < 5}} \right.$
$\left \{ {{x\geq 2} \atop {x < 4}} \right.$
x ∈ [2;4)