2x = log(3)(8x^2 + 7) 求x的值,
2x = log(3)(8x^2 + 7) 求x的值,
log(x-1) (x^2-8x+7)=1,求x的值
lg(7*2^x+8)>=log(√10) 2^x,求函数f(x)=log(1/2)x*log(1/2)x/4的最小值
log以x为底2的对数=7/8,求x的值
log底数7[log底数3(log底数2X)]=0,那么x^1/2的值是
log以7/8为底x的对数=2/3,求x
已知x属于[根号2,8],求f(x)=[log(2)(x/2)乘log(2)(x/4)]最大值,最小值与相应的x的值.
已知log∨7∧[log∨3∧(log∨2∧x)]=0 求X∧1/2的值
[( log(x^2) + log(x^4) )/ log(100 x)] = 4 求X
2 log(3x)= log 4 +log(6-x)怎么求...急
log(0.1)log(0.2)log(0.5)(1/根号5次2)=x,求x的值
已知log的2次方【log的3次方(log的4次方x)】=log【log的4次方(log的2次方y】=0,求x+y的值