(log4(3)+log8(3))(log3(2)+log9(2))=(lg3/lg4+lg3/lg8)(lg2/lg3+lg2/lg9)=5lg3/6lg2X3lg2/2lg3=5/6X3/2=5/4
原式=(2/1log2(3)+3/1log2(3))(log3(2)+2/1log3(2))=5/6log2(3)*3/2log3(2)=5/6log2(3)*3/2*1/log2(3)=5/4
