hp dari√5x-2 < √2x+1

Jawab :

√(5x - 2) < √(2x + 1)
5x - 2 < 2x + 1
5x - 2x < 1 + 2
3x < 3
x < 1 ... (1)

5x - 2 ≥ 0
5x ≥ 2
x ≥ 2/5 ... (2)

2x + 1 ≥ 0
2x ≥ -1
x ≥ -1/2

NiLai x yg memenuhi :
Irisan (1)(2) dan (3)

HP = {x| 2/5 ≤ x < 1 , x e R}