Question

va rog dau coroana!!!​

Answer 1

Răspuns:

2) dreptunghic isoscel (T45°)

3) 2x + 3 = - 11

2x = - 11 - 3

2x = - 14

x = - 7

4) (- 4)² = (-4)×(-4) = 16

3³ = 3×3 = 9

16 > 9 => (- 4)² > 3²

5) | 2x - 1 | = 5

• 2x - 1 = 5

2x = 5 + 1 => 2x = 6 => x₁ = 3

• 2x - 1 = - 5

2x = - 5 + 1 => 2x = - 4 => x₂ = - 2

6) x + 2 < 1

x < 1 - 2

x < - 1

x ∈ (- oo ; - 1) ∩ Z