log2(0.5)=(?)、log4(0.5)=(?)、-log2(0.5)=(?)、log2(4)=(?)

log2(0.5)=(?)、log4(0.5)=(?)、-log2(0.5)=(?)、log2(4)=(?) log4(log2^x)=log2(log4^x)求log2^x log2^x=log4^9 log2^x >= log4^(3x+4) 对数问题 log2^x=log4^9 log2(x-2)=log4(5-x) log4 243 - log8 729=?log4 12 - log2 6=? 解方程log2(2x)*log4(x/4)=2 log2 根号2+log9 27+4^log4 13=? log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2[log (log2 9)/(log2 8) = 2/3(log2 3) a=log2(3.6),b=log4(3.2),c=log2(3.6)比大小