㏒3(a+1)=1.㏒2a+log2(a-1)等于什么?
问题描述:
㏒3(a+1)=1.㏒2a+log2(a-1)等于什么?
答
㏒3(a+1)=1 ==> a +1 = 3 == > a =2 ㏒2a+log2(a-1) = ㏒2 2+log2(2-1) = 1 + 0 = 1
㏒3(a+1)=1.㏒2a+log2(a-1)等于什么?
㏒3(a+1)=1 ==> a +1 = 3 == > a =2 ㏒2a+log2(a-1) = ㏒2 2+log2(2-1) = 1 + 0 = 1