作业帮2^log2(3)×log2(1/8)+lg4+2lg5
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2^log2(3)×log2(1/8)+lg4+2lg5
2^log2(3)×log2(1/8)+lg4+2lg5
2^log2(3)×log2(1/8)+lg4+2lg5
2^log2(3）=3
log2(1/8)= -3
lg4+2lg5=lg4+lg25=lg100=2
原式= 3*（-3）+2=-7
计算：（1）log2 (4^3*8^5);(2)log2 3+log2 6-log2 9
(log2 9)/(log2 8) = 2/3(log2 3)
2^log2 (3) × log2 (1/8) + 2lg3
2^log2(3)×log2(1/8)+lg4+2lg5
|[log2(x)]^2-3log2(x)+1|
log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1
化简log2 1/2+log2 2/3+log2 3/4+.+log2 31/32
[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
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(x+1)+log2(x+8)=3的解集是?
解不等式log2(4x+8)>log2(2x+1)
求值：log2 (5/56)^(1/2)+log2 (14)-(1/2)log2 (35)=log2中2为底数=1/2[-2log2 (7)-3]+log2 (2)+log2 (7) 中的1/2[-2log2 (7)-3]是怎么得到的？
求解log2(3x)=log2(2x+1)
不等式log2(2x+3)>log2(x+1)的解集是
化简算式log2^√7/48+log2^12-1/2log2^42+1/2^log2^3
lg(1/4)-lg2(5) 2log5(10)+log5(0.25) 2log2(25)-3log2(64) log2(log2(16) )
【x】表示不超过实数x的最大整数,则【log2 1]+[log2 2]+[log2 3]+.+[log2 2012]等于?
根号下[(log2^3)^2-4log2^3+4]+log2^(1/3)