1. √(x - 2) ≤ 3
• definisi
x - 2 < 0
x ≥ 2
• penyelesaian
√(x - 2) ≤ 3
√(x - 2)^2 ≤ 3^2
x - 2 ≤ 9
x ≤ 11
• x = [2, 11]
2. √(x - 1) < √(x - 2)
• definisi pertama
x - 1 < 0
x < 1
• definisi kedua
x < 2
• gabungan
x = [2, + ∞]
√(x - 1) < √(x - 2)
√(x - 1)^2 < √(x - 2)^2
x - 1 < x - 2
x - x < -2 + 1
0 < 1
• x = ∅
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1. √(x - 2) ≤ 3
• definisi
x - 2 < 0
x ≥ 2
• penyelesaian
√(x - 2) ≤ 3
√(x - 2)^2 ≤ 3^2
x - 2 ≤ 9
x ≤ 11
• x = [2, 11]
2. √(x - 1) < √(x - 2)
• definisi pertama
x - 1 < 0
x < 1
• definisi kedua
x - 2 < 0
x < 2
• gabungan
x < 1
x < 2
x = [2, + ∞]
• penyelesaian
√(x - 1) < √(x - 2)
√(x - 1)^2 < √(x - 2)^2
x - 1 < x - 2
x - x < -2 + 1
0 < 1
• x = ∅