1.(1/4)^(log4)^(1/16)等于多少
2.lg^3(2)+3lg2lg(5)+lg^3(5)等于多少
3.若3^a=2,则log3(8）-2log3(6)用a表示的式子是?
4.已知lga=2.4310,lgb=1.4310,则b/a等于?
5.27^[3+log3(2)]=?
6.5^[log5(100)-3]=?
7.81^[0.5log3(5)]=?