> 数学 >
解不等式 lgx*lg(x-1)≤6 麻烦写下过程
人气:227 ℃ 时间:2020-04-04 07:00:17
解答
lgx(lgx-1)<=6
(lgx)^2-lgx-6<=0
(lgx-3)(lgx+2)<=0
-2<=lgx<=3
1/100<=x<=1000
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版