escreva na forma de um único logaritmo?
A) log5 na base 4+ log9 na base 4
B)3.log4 na base 8 - log16 na base 8
C)1/3log8 na base 3 + 4. log 2 na base 3 - log10 na base 3
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A) log5 na base 4+ log9 na base 4
B)3.log4 na base 8 - log16 na base 8
C)1/3log8 na base 3 + 4. log 2 na base 3 - log10 na base 3
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A) log5 na base 4+ log9 na base 4= log45 na base 4
B)3.log4 na base 8 - log16 na base 8 =log(4³/16) na base 8 = log4 na base 8 = 3/2
C)1/3log8 na base 3 + 4. log 2 na base 3 - log10 na base 3 =log(³√8 ·2^4/10) na base 3
= log(32/10) na base 3 = log(16/5) na base 3
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