Respostas

2014-01-08T20:31:40-02:00
Se log2 = a,
Então,


=>~~log16\\\\=>~~log(2.2.2.2)\\\\=>~~log2^4\\\\=>~~4.log2=\boxed{4a}

alternativa (b)

ok.. :)
Espero ter ajudado.. :))

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