2^log2 (3) × log2 (1/8) + 2lg3
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2^log2(3)×log2(1/8)+2lg32^log2(3)×log2(1/8)+2lg32^log2(3)×log2(1/8)+2lg3利用公式：a^loga(N)=N,loga(N^M)=M
2^log2 (3) × log2 (1/8) + 2lg3
2^log2 (3) × log2 (1/8) + 2lg3
2^log2 (3) × log2 (1/8) + 2lg3
利用公式：a^loga(N)=N,loga(N^M)=Mloga(N)
[2^log2(3)]×log2(1/8)+2lg3
=3×log2(2^-3)+2lg3
=3×(-3)+2lg3
=2lg3-9
2^log2(3)×log2(1/8)+2lg3=3×(-3)+2lg3
=2lg3-9
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