计算log2 1/4+2^log2 2+91lg1+(0.25)^(1/2)×(-1/27)^(-2/3).

计算：（1）log2 (4^3*8^5);(2)log2 3+log2 6-log2 9 计算 根号下[(log2 5)^2-4log2 5+4]+log2 1/5 计算2^4+ log2^3 化简log2 1/2+log2 2/3+log2 3/4+.+log2 31/32 计算log2 √(48/7)-log2 12+(1/2)log2 42-1 计算log2 1/4+2^log2 2+91lg1+(0.25)^(1/2)×(-1/27)^(-2/3). [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 计算：log2(log2 32-log2 3/4+log2 6) log2^(4^7*2^5)+log2^6-log2^3 log2 SQR(7/48)+log2 12 -1/2log2 42 log2 SQR(7/48)+log2 12 -1/2log2 48 log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2[log2(32)-log2(3÷4）+log2log的计算 ：log2（20）-log4（25)= log3(2)×log2（5）×log5（3）=?log2【log2(32)-log2(3÷4）+log2（6）】=?lgx+lg（x+15）=2 ..X 4^1/2（log2^9-log2^5）的值 , 解不等式log2(4x+8)>log2(2x+1) 化简：(log2(x/4))*(log2(x/2)) |[log2(x)]^2-3log2(x)+1| (log2)2+log2*log50+1g25值 计算(log3 2)(log2 6-1)