Question

Scrieti sub forma de interval urmatoarea multime:
A={ x€R / |x-1| <=2}

Answer 1

Rezolvarea in poza atasata.

Answer 2

|x - 1| ≤ 2 ⇒  -2 ≤ x-1 ≤ 2 |+1  ⇒  -1 ≤ x ≤ 3  ⇒ x∈ [-1,  3] ⇒

⇒ A = [-1,  3].