2^(log2 24)=?为什么?

2^(log2 24)=?为什么? 为什么log3(2)=1/log2(3). (log2 9)/(log2 8) = 2/3(log2 3) 为什么 log2[√(x^2+1)-x]=log2{1/[√(x^2+1)+x]} 2log2 10—log2 25=? 2^[log2(3)] 说明为什么, 2log2为什么等于log4 log2 24-1/log3 2= 2log2^3= 2^log2(20)=? log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5) log2(x – 2 ) + 2 = log2(5)log2(x – 2 ) + 2 = log2(5) log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1 (log2) ^2 - log5 *log20课本上 等于 （log2）^2 +(1+log2)(1-log2) = 1;（log2）^2 +(1+log2)(1-log2) 是怎么来的? log2 4+log2 (x+2)怎么算?log2 4+log2 (x+2)=log2 (4x+8) log2 5/log2 3为什么等于log3 5 log2 5,log2 3的2是角标 log3 5的3是角标log2 5/log2 3为什么等于log3 5log2 log2 3的2是角标，log3 5的3是角标 log2 (log2 16)=? [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