数学问题:log的化简
2015-09-06
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1.2log4(9)-log2(3)=2log2(3)-log2(3)=log2(3)
2.3^[2log3(5)]=3^[log3(25)]=25
3.log10(1/10^x)=log10[10^(-x)]=-x
4.2log10(√x)+3log10[x^(1/3)]=log10(x)+log10(x)=2log10(x)
2.3^[2log3(5)]=3^[log3(25)]=25
3.log10(1/10^x)=log10[10^(-x)]=-x
4.2log10(√x)+3log10[x^(1/3)]=log10(x)+log10(x)=2log10(x)
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