麻烦大家解析一下过程
(a+log4 3)^2=(a+log2 3)(a+log8 3)
a=0
q=log4 3/log2 3= (lg3/lg4)*/(lg3/lg2)=log 4 2=1/2
q^3=a5/a2=27'
q=3
a1=3 a2=9 a3=27 a4=81
相加就行了啊
1.(B)先算a=log16(3)
2.(B)3+9+27+81