Respostas

2013-12-09T12:27:22-02:00
E=LOG10^2 -LOG 10^(-3)
LOG10^2=X
10^2=10^X
X=2

LOG10^(-3)=X
10^(-3)=10^X
X=-3
E=LOG10^2-LOG10^(-3)
E=2-(-3)
E=5
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B