已知log3(a+1)=1,求loga2+loga(a-1)

问题描述:

已知log3(a+1)=1,求loga2+loga(a-1)

log3(a+1)=1
a+1=3
a=2
loga2+loga(a-1)
=log2 2+log2 1
=1+0
=1