1- a) resolva a equação 10^1-x=0,0001b) log (2x-3)+log (x+2)=2. log x 2) sabendo que log 5479=3,45347 e que log 1235= 1,5678, calcule o valor de: a) log 547,9  1- a) resolva a equação 10^1-x=0,0001 
b) log (2x-3)+log (x+2)=2. log x 

2) sabendo que log 5479=3,45347 e que log 1235= 1,5678, calcule o valor de: 

a) log 547,9 
b)log 1235,5
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