化简1,log（√3）3√3 2,2log（5）10+log（5）0.25

化简2log`5(10)+log`3(0.25）+log`1/5(125)= 化简,log（5）35+2log(1/2)√2 - log(5)1/50 - log(5)14 [log(3)3^1/2]^2+log(0.25)1/4+9log5根号5-log（根号3）1=? [log(5)√2·log(49)81]/[log(25)(1/3)·log(7)三倍根号四] log（2）25×log（3）4×log （5）9等于多少? 利用对数的换底公式化简下列 1.log(a)c×log(c)a 2.log(2)3×log（3）4×log（4）5×lo log(2)(25)*log(3)(根号2)*log(5)(9) 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log( 2的1-log（4）5次方+log（根号2）4+log（3）1/9的值? log(2)5×log(5)81×log(3)4＋In√e. 化简1/log 7+1/log 7+1/log 7 5 3 2 已知log（2）[log（3)(log(4) x)] = log(3) [log(4) (log(2) y)]=0,求x