log2 (2^x-1)·log2 [2^(x+1)-2]
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log2 (2^x-1)·log2 [2^(x+1)-2]
log2 (2^x-1)·log2 [2^(x+1)-2]
log2 (2^x-1)·log2 [2^(x+1)-2]
很简单,用换元法,令log2(2^x-1)=u,原不等式可化为一个一元二次不等式组.解得,log2(3/2)
1小于x小于log2(7/3)
|[log2(x)]^2-3log2(x)+1|
log2 (2^x-1)·log2 [2^(x+1)-2]
log2 (2^x-1)·log2 [2^(x+1)-2]
log2(2X-1)
log2 (x + 3) + log2(x + 2) = 1log2 (x + 3) + log2(x + 2) = 1
[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(x-1)>2定义域log2(x-1)>2 定义域
解方程log2(2-x)=log2(x-1)+1
解2log2^(x-5)=log2^(x-1)+1
求解log2(3x)=log2(2x+1)
不等式log2(2x+3)>log2(x+1)的解集是
解不等式log2(4x+8)>log2(2x+1)
化简:(log2(x/4))*(log2(x/2))
不等式log2(2^x-1)·log2(2^(x+1)-2不等式log2(2^x次幂-1)·log2(2^x+1次幂-2)
不等式log2(x^2-1)
|2x-log2^x|
【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?
求值域,log2 x/2·log2 x/4(x∈[1,8])