1、log下标3 2(log下标4 3+log下标8 3)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/09 04:29:14
1、log下标3 2(log下标4 3+log下标8 3)
2、log下标1/3 √27+log下标27 1/3
2、log下标1/3 √27+log下标27 1/3
1,用换底公式,都换成以3为底的对数.
log3(2)[log4(3)+log8(3)]
=log3(2)[1/log3(4)+1/log3(8)]
=log3(2)[1/2log3(2)+1/3log3(2)]
=1/2+1/3
=5/6
2.用换底公式,都换成以3为底的对数.
log1/3(√27)+log27(1/3)
=log3(√27)/log3(1/3)+log3(1/3)/log3(27)
=(3/2)/(-1)+(-1)/3
=-3/2-1/3
=-11/6
log3(2)[log4(3)+log8(3)]
=log3(2)[1/log3(4)+1/log3(8)]
=log3(2)[1/2log3(2)+1/3log3(2)]
=1/2+1/3
=5/6
2.用换底公式,都换成以3为底的对数.
log1/3(√27)+log27(1/3)
=log3(√27)/log3(1/3)+log3(1/3)/log3(27)
=(3/2)/(-1)+(-1)/3
=-3/2-1/3
=-11/6
1、log下标3 2(log下标4 3+log下标8 3)
log下标2 3乘以log下标3 4
化简 log 9(9是下标)3+log 9(9是下标)27 log2(2是下标)(1/2)-log1/2(1/2是下标)
(x+√3i)^3=log√2(下标)1/2^4 求x,
Log 下标X 中标5=3 ,怎么求X
求y=log下标(1/3)sin(x+π/4)的单调增区间
log x+3下标 (X^3+X-2)/X =2 求 X是多少?
2∧log2 3+2=?log后的2是下标
求函数y=3lnx-x/2+e^2- log(下标a) 10的导数.
比较大小 log下标:7中标:8与log下标:8中标:7
log 8下标 (X-6)+ log 8小标 (x+6)=2 求X
若log下标2上标2x+3 >0,则x的取值范围为?