Question

rezolvati din poza doar ex. 12​

Answer 1

Răspuns:

b) B = { x ∈ R | |x| > 7 }

[x = ±8; ±9; ±10.....∞]

c) D = { x ∈ R | |x+1| ≥ 2 }

[x = 1; 2; 3; 4....∞]

f) F = { x ∈ R | |3x-1| ≥ 8 }

[x = ±3; ±4; ±5; ±6; ±7....∞]

Succes! :)

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