log以9为底32×log以64为底27＋log以9为底2×log以4为底√27
=lg32/lg9×lg27/lg64+lg2/lg27×lg√27/lg4
=5/2lg2/lg3×3/6lg3/lg2+1/3lg2/lg3×3/4lg3/lg2
=5/2x3/6+1/3x3/4
=5/4+1/4
=1.5lg√27/lg4怎么算出3/4lg3/lg2lg√27=1/2lg27=3/2lg3lg4=2lg2lg√27/lg4=3/2lg3/(2lg2)=3/4lg3/lg2