Jika ³log 5=p nilai 9 log 15=....

³log5 = p

⁹log15
= (3²)log(3 . 5)
= (1/2) ³log(3 . 5)
= (1/2) . [³log3 + ³log5]
= (1/2) . [1 + p]
= (1 + p) / 2

Jawabannya:
³log5= p
nilai 9log15
(3²)
=(1/2)log(3.5)
=(1/2).(3log3+3log5)
=(1/2).(1+p)
=(1+p)/2

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