log(8)(2)^x加log(7)(1/根号3次49)=1,求x的值

log(8)(2)^x加log(7)(1/根号3次49)=1,求x的值 log(10)(25/9)减log(10)(7/4)减log(10)(1/9)加1/2log(10)(49) log(1/8)X 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log(2)(3)} X {log(3)(4)+log(9)(2)}3.(lg2)^+1g2X 1g5 +1g50 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 1、若lg2=a,lg3=b,则lg√15=?（用a、b表达）2、若log(15)(5)=m,则log(15)(3)=(用m表示)3、log(2)(3)*log(3)(4)*log(4)(5)*log(5)(6)*log(6)(7)*log(7)(8）=?4、设log(3)(2)=log(2)(3^x),x=?这个对数函数我学的很不好,所以希望过 log（x+5）=log（x）+log（2） log（8）+log（x）=log（24） 2log（x）=log(2x)+log(3) 计算：（1） log(2)(3)*log(3)(4)*log(4)(5)（2）log(2)(7)*log(√7)(8) 2^log(4)(3)加3^log(9)(1/4)加5^log(1/25)(2) 试解关于x的不等式log(2)x+4log(3)x+12log(8)x+n·2^(n-1)·log(2^n)x log底数7[log底数3（log底数2X）]=0,那么x^1/2的值是 log(X+5)+log(X+2)=1 log根号2（X-1) 简化2log (x + 4) – log(2x + 8) + log(x - 2)谢谢~ 已知log(8)[log(3)X]=0,那么X^(-1/2)= 求1/2log(10)(x+6)加log(10)(根号2x+5)=log(10)(6根号2） 2log(m)y-log(m)x-log(m)z 计算：8^(1-log(83))(27^(2/3))-log(32)