log2 27/log2 9=

log2 27/log2 9= log2(3)×log2(4)=log2(7)?log2(3)×log2(4)=log2(7)吗?log2(1/49)+log2(1/16)+log2(1/27)等于多少呢?帮个忙! (log2 9)/(log2 8) = 2/3(log2 3) log2 (log2 16)=? log2^(x^log2^x)=? log2(log2 (log8 9/log2 3)=? log2^x=log4^9 LOG2^3=A,LOG2^5=b,则log2^9/5值是多少 log4(log2^x)=log2(log4^x)求log2^x 2log2 10—log2 25=? log2 5/4+log2 5=多少, log2 (x+1)+log2 x=log6 （log2 27）×（log3 8）=? log9(16) ×log2(27)=6步骤 log2^9*log3^8 log8(9)*log2(3) 9^log2(3) 求值