Question

va rog mult,dau coroana​

Answer 1

Răspuns:

A, B, C

Explicație pas cu pas:

x ≤ 0 <=> g(x) = 1 - 2x

x = -2 => g(-2) = 1 - 2(-2) = 1 + 4 = 5 => A ∈ Gg

x = -1 => g(-1) = 1 -2(-1) = 1 + 3 = 4 => F ∉ Gg

x ∈ (0; 2)

x = 1 => g(1) = 3 => B ∈ Gg

x = √3 => g(√3) = 3 => D ∉ Gg

x ≥ 2

x = 2 => g(2) = 1 + 2² = 5 => C ∉ Gg

x = √5 => g(x) = 1 + (√5)² = 6 => E ∈ Gg