Nilai (log5-log2) (log5+log2)÷log2,5

Kelas 10 Matematika
Bab Logaritma

(log 5 - log 2) (log 5 + log 2) : log 2,5
= log (5/2) . log (5 . 2) : log 2,5
= log 2,5 . log 10 : log 2,5
= log 2,5 . 1 : log 2,5
= 1

[tex] log(5) + log(2) [/tex]