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Verified answer
Jawaba)
³log (x - 4) ≥ ³log x + ³log 4
³log (x - 4) ≥ ³log 4x
(i) x- 4 ≥ 4x
x - 4x ≥ 4
- 3x ≥ 4
x ≤ - 4/3
(ii) x - 4 > 0 atau 4x > 0
x > 4 atau x > 0
(i) n (ii) HP ={}
2.
²log ( x+ 5) + ²log (3 - x) < ²log (4 - x)
²log (x + 5)(3 - x) < ²log (4 - x)
(i) (x + 5)(3 -x) < 4 - x
x² - 2x + 15 < 4 - x
x² - 2x + x + 15 - 4 < 0
x² - x + 11 < 0
D < 0 ,
X { }
Verified answer
LOGARITMA• pertidaksamaan
b][
²log (x + 5) + ²log (3 - x) < ²log (4 - x)
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