1. Jika 3^log 5 =p dan 5^log 2=q.Nyatakan 6^log 45 dalam p dan q??

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2. Tentukan nilai 2^log 10-2^log 25+2^log 5×5^log 4+2^log 5??
3. Tentukan nilai x yang memenuhi bentuk logaritma 4^log 256??​

1. Jika 3^log 5 =p dan 5^log 2=q.Nyatakan 6^log 45 dalam p dan q??

Jawaban:

1. : frac{p + 2}{pq + 1}

2. : 3

3. : 4

Penjelasan dengan langkah-langkah:

1. : {}^{6} log : 45 = frac{ {}^{5} log : 45}{ {}^{5} log : 6} = frac{ {}^{5}log : (5 times 3 times 3) }{ {}^{5} log : (3 times 2)}

 = frac{ {}^{5}log : 5 + {}^{5} log : 3 + {}^{5} log : 3 }{ {}^{5} log : 3 + {}^{5} log : 2} = frac{1 + frac{1}{ {}^{3}log : 5 } + frac{1}{ {}^{3} log : 5} }{ frac{1}{ {}^{3} log : 5} + q}

 = frac{1 + frac{1}{p} + frac{1}{p} }{ frac{1}{p} + q } =frac{1 + frac{1}{p} + frac{1}{p} }{ frac{1}{p} + q } times frac{p}{p} = frac{p + 1 + 1}{1 + pq} = frac{p + 2}{pq + 1}

2. : {}^{2} log : 10 - {}^{2} log : 25 + {}^{2} log : 5 times {}^{5} log : 4 + {}^{2} log : 5

 = {}^{2} log : 10 - {}^{2} log : 25 + {}^{2} log : 4 + {}^{2} log : 5

 = {}^{2} log : frac{10}{25} times 4 times 5

 = {}^{2} log : frac{10 times 4 times 5}{25}

 = {}^{2} log : frac{200}{25}

 = {}^{2} log : 8

 = {}^{2} log : {2}^{3}

 = 3

3. : {}^{4} log : 256 = {}^{4} log : {4}^{4} = 4

Semoga Membantu :)