log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2[log
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/14 10:18:41
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2[log2(32)-log2(3÷4)+log2
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2【log2(32)-log2(3÷4)+log2(6)】=?lgx+lg(x+15)=2 ..X的值?
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2【log2(32)-log2(3÷4)+log2(6)】=?lgx+lg(x+15)=2 ..X的值?
1、log2(4*5)-(2/2)log2(5)=log2(4)+log2(5)-log2(5)=2 ;
2、换底公式:(lg3/lg2)*(lg5/lg2)*(lg5/lg3)=1 ;
3、log2(5-log2(3)+log2(4)+log2(2)+log2(3))=log2(8)=3 ;
4、lg(x*x+15x)=2 ,x*x+15*x=100,(x+20)(x-5)=0,x=5(15x>0,所以舍掉-20).
2、换底公式:(lg3/lg2)*(lg5/lg2)*(lg5/lg3)=1 ;
3、log2(5-log2(3)+log2(4)+log2(2)+log2(3))=log2(8)=3 ;
4、lg(x*x+15x)=2 ,x*x+15*x=100,(x+20)(x-5)=0,x=5(15x>0,所以舍掉-20).
log的计算 :log2(20)-log4(25)= log3(2)×log2(5)×log5(3)=?log2[log
我是这样做的log2(3)*log3(5)*log5(49)*log7(64)=log2(3)*log3(5)*2log
(log2(5)+log4(125))×log3(2)/log根号3(5)
(log2 5+log4 125)log3 2/ log根号3 5
log2(3)*log3(4)*log4(5)*.log(k+1)(k+2)=log2(k+2) 怎么证
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有关log的数学题①log2(2X+3)=0②log5(X)-1/3log5(8)=0③log2(X)+log4(X)=
(log2^5+log4^125)(log3^2)/(log(根号3)^5 要具体的过程,
利用换底公式求值:1.log2 25 ×log3 4 ×log5 9 2.(log4 3+log8 3)(log3 2+
计算log的题目2log5 10+2log5 0.5+log2 1+3log3 3log后为系数,特隔空格区分,
log2(20)-log2(5)+2log3(2)×log4(3)
(log2(5)+log4(125))(log3(2)/log√3(5))怎么解?