Jawabanmu

2014-09-03T21:58:32+07:00
A. =2/3 2log2^7-1/2 2log2^4
= 2/3 x7 - 1/4 x 4
= 14/3 - 4/2
= 16/6
= 8/3

B. = alog2x + 3 alogx/y
= alog2x + alog(x/y)^3
= alog(2x)(x/y)^3
= alog(2x^4)/y^3

C. = alog(a/√x)/(√ax)
= alog(a/√x)(1/√ax)
= alog(a/x√a)

D. = log(√a√b)/(√a√b)
= log1
= 0