2^0.1,2^-1,log2(1/5)怎么比较大小
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2^0.1,2^-1,log2(1/5)怎么比较大小
2^0.1,2^-1,log2(1/5)怎么比较大小
2^0.1,2^-1,log2(1/5)怎么比较大小
画一个y=2^x的函数图象,该函数定义域为R,值域为R+,是单调递增函数,易得2^-1<2^0.1.再画y=log2(x)的图像,可知log2(1/5)<0,所以log2(1/5)<2^-1<2^0.1
计算:(1)log2 (4^3*8^5);(2)log2 3+log2 6-log2 9
4^1/2(log2^9-log2^5)的值 ,
(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 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 SQR(7/48)+log2 12 -1/2log2 42
log2 SQR(7/48)+log2 12 -1/2log2 48
解2log2^(x-5)=log2^(x-1)+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?
|[log2(x)]^2-3log2(x)+1|
(log2)2+log2*log50+1g25值
lg(1/4)-lg2(5) 2log5(10)+log5(0.25) 2log2(25)-3log2(64) log2(log2(16) )
log2底根号5/56+log2(14)-1/2log2(35)答案是-1/2
log2(√1/48)+log2 12-1/2log2 (24)-1/3
根号下{[log2 (5)]^2-4log2(5)+4}+log2(1/5)
计算 根号下[(log2 5)^2-4log2 5+4]+log2 1/5
log2(2X-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