x=9log25.5log2-3log18
Matematika
luciusardhian
Pertanyaan
x=9log25.5log2-3log18
1 Jawaban
-
1. Jawaban Anonyme
Bab Logaritma
Matematika SMA Kelas X
x = ⁹log 25 . ⁵log 2 - ³log 18
= ⁵log 25 . ⁹log 2 - ³log 18
= ⁵log 5² . ^(3²)log 2¹ - ³log 18
= 2 . ⁵log 5 . (1/2) . ³log 2 - ³log 18
= 2 . 1 . (1/2) . ³log 2 - ³log 18
= ³log (2 : 18)
= ³log (1/9)
= ³log 3⁻²
= -2 . ³log 3
= -2