设log2 3=a,log2 5=b,则log9 15=?
LOG2^3=A,LOG2^5=b,则log2^9/5值是多少
设a>1,b>1,log2(a)×log2(b)=1.则log2(ab)的最小值为多少
log2 36=a,log2 10=b,则log2 15=?
若log2 36=a,log2 10=b,则log2 15等于多少
设实数ab满足log2(a-1)+log2(b-2)=2则a+b的最小值为
log2 根号2+log9 27+4^log4 13=?
设集合A={5,log2(a+3)},B={a,b}.若A∩B={1},则A∪B=______.
高中数学.快点哈log2的三次幂=a 求log9的八次幂?
设lg2=a,则log2(25)等于
设a=log1/2 0.2,b=log2 0.5,c=log2 0.2,则a、b、c之间大小关系为?
(log2 9)/(log2 8) = 2/3(log2 3)
若log2^3×log3^4×log4^x=log9^3 ,求x