Jika log 3 = a dan log 5= b. Tentukan nilai A. Log 75 B. Log 1500

[tex]a. log(75) \\ = log(3 \times {5}^{2} ) \\ = log(3 ) + 2 \: \log(5) \\ = a + 2b[/tex]
[tex]b. \: log(1500) \\ = log(3 \times 5 \times 100) \\ = log(3) + log(5 ) + log( {10}^{2} ) \\ = a + b + 2[/tex]

A. Log 75 = log 5^2 . 3
= 2 log 5 + log 3
= 2 + b + a

B. Log 1500 = 3 . 5 . 10^2
= log 3 + log 5 + 2 log 10
= a+ b+2

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