当x=log2 k 时1/x=log2 证明应该是当x=log2 k 时1/x=logk 证明

当x=log2 k 时1/x=log2 证明应该是当x=log2 k 时1/x=logk 证明 log2 (x+1)+log2 x=log6 log2^(x^log2^x)=? 已知函数f(x)=log2^ ( x/4 ) ×log2^ (2x) (1)解不等式f(x)>0;(2)当x∈【1,4】时,求f(x)的值域f（x）=log2（2x）×log2（x／4）＝[（log2 2）+(log2 x)] ×[(log2 x) -(log2 4)]=[1+(log2 x)] ×[(log2 x) -2]=(log2 x)² - (log2 x) -2 log2(x)=-1 log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1 log4(log2^x)=log2(log4^x)求log2^x log2(-x)=x+ 解方程log2(2-x)=log2(x-1)+1 解2log2^(x-5)=log2^(x-1)+1 求解log2(3x)=log2(2x+1) log2(x+1)+log2(x+8)=3的解集是? log2(log5 x)=-1 谁能帮我解一下：log2(x + 1) = 4 - log2(x + 1)log2(x + 1) = 4 - log2(x + 1) 解方程：log2(x+4)+log2(x-1)=1+log2(x+8) [log2 1]+[log2 2]+[log2 3]+[log2 4]+[log2 5]+...+[log2 1024]=?[x]表示不超过x的最大整数2为底 答案是8204 已知f(x)是奇函数,且f(2-x)=f(x),当x∈[2,3]时,f(x)=log2(x-1),则当x∈[1,2]时,f(x)=____.A.-log2(4-x) B.log2(4-x) C.-log2(3-x) D.log2(3-x)注：对数都是以2为底的. log2[log2/1(log2x)]=0 求 x