jika 7 log 5 = a dan 5 log 4 = b maka 4 log 35 =
Matematika
desfia1
Pertanyaan
jika 7 log 5 = a dan 5 log 4 = b maka 4 log 35 =
1 Jawaban
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1. Jawaban Anggress1
7 log 5 = a <=> 5 log 7 = 1/a
4 log 35 = 5 log 35 / 5 log 4
= 5log5 + 5log7 / 5log4
= 1+1/a / b
= (a+1)/a / b
= a+1 / ab