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1 / (x - 3) ≤ 0
jika x = 0 ===>> 1/(0-3) = -1/3 (memenuhi)
jika x = 3 ====>> 1/(3-3) = 1/0 (tak memenuhi)
jika x = 4 =====>> 1/1 = 1 (tak memenuhi)
X ≠ 3
X < 3
Karena berbentuk pecahan, maka penyebut ≠ 0
x² - 5x + 6 ≠ 0
(x - 3)(x - 2) ≠ 0
Jadi, x ≠ 2, 3
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