log2√5/56+log^14-1/2log2^35 （2lg2+lg3)/(2+lg0.36+2lg2) √是根号,5/56全在根号下

log2√5/56+log^14-1/2log2^35 （2lg2+lg3)/(2+lg0.36+2lg2) √是根号,5/56全在根号下 log根号2^（x-5）log2^(x-1) log根号2^(x-5)-log2^(x-1) log(2.5)6.25-lg(1/100)+ln(e√e)+log2(log(2)16)=? 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？ log2底根号5/56+log2(14)-1/2log2(35)答案是-1/2 log2(3)*log3(4)*log4(5)*.log(k+1)(k+2)=log2(k+2) 怎么证 (log2(5)+log4(125))(log3(2)/log√3(5))怎么解? log(1/2)(x^2-5x-6)>log2{1/[2(x+6)]} 解方程log根号2(x+1)-log2(x+5/2)=1 比较大小：log(1/2)^5 ,log2^3 ,1 ,3^(-0.2) (log2 5+log4 125)log3 2/ log根号3 5 解不等式log2(2^x-1)log(2^x-2) 解不等式log2(4^x+1)>log(2^x+7) 解方程 log2（x+14）+log（x+2）=log（x+6）+3 方程log(2^x+1)+log(2^x+2)=log2 6的解 log2.5﹙6.25﹚＋lg0.001＋ln√e＋2∧﹣1＋log₂3等于多少log2.5﹙6.25﹚的2.5为底数. (log5 √2*log7 9)/(log5 1/3 *log7 3√4)+log2( √(3+√5)- log√(3-√5))=?