Jika diketahui ³log5= m,dan 7log5 =n. maka 35log15=? a.1+m/1+n b.i+n/1+m c.m(1+n)/1+m d.n(1+m)/m(1+n) e.nm+1/m+1 tolong dijawab
Matematika
MuhammadFarhan1400
Pertanyaan
Jika diketahui ³log5= m,dan 7log5 =n. maka 35log15=?
a.1+m/1+n
b.i+n/1+m
c.m(1+n)/1+m
d.n(1+m)/m(1+n)
e.nm+1/m+1
tolong dijawab
a.1+m/1+n
b.i+n/1+m
c.m(1+n)/1+m
d.n(1+m)/m(1+n)
e.nm+1/m+1
tolong dijawab
1 Jawaban
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1. Jawaban FMAK
35 log 15
=log 15/log 35
= 5 log 15/5 log 35
=5 log (3x5)/5 log (5x7)
=5 log3 + 5 log 5/5 log5+ 5 log 7
= 1/m+1/1+1/n
=1+m/m/n+1/n
=1+m/m x n/n+1
=n(1+m)/m(1+n) (d)