lg36-lg4= lg36 x lg9= 2lg5÷3lg2= lg根号3= log2 56 - log2 7 (2是底数)急死..

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lg36-lg4= lg36 x lg9= 2lg5÷3lg2= lg根号3= log2 56 - log2 7 (2是底数)急死..
lg36-lg4= lg36 x lg9= 2lg5÷3lg2= lg根号3= log2 56 - log2 7 (2是底数)
急死..

lg36-lg4= lg36 x lg9= 2lg5÷3lg2= lg根号3= log2 56 - log2 7 (2是底数)急死..
lg36-lg4=lg9=2lg3 lg36 x lg9=2lg6 x2 lg3=4lg6lg3 2lg5÷3lg2=(2/3)log(2)5 lg√3=(1/2)lg3 log(2) 56 - log(2) 7=log(2)8=3