新GRE数学 For which of the following sets of numbers is the product of the three numbers less

新GRE数学 For which of the following sets of numbers is the product of the three numbers less

题目
新GRE数学 For which of the following sets of numbers is the product of the three numbers less
For which of the following sets of numbers is the product of the three numbers less than each member of the set?
Ⅰ1/4,2/3,3/4 Ⅱ-1/2,-1,4 Ⅲ -2,3,5
A Ⅰonly BⅡonly C Ⅲ only DⅠand Ⅲ E Ⅱand Ⅲ
答案
下面哪组数字中三个数字的乘积比其中的任一个数字都小?
I:三数乘积为1/8,比1/4,2/3,3/4中的任意一个都小
II:三数乘积为2,比-1/2和-1都大
III:三数乘积为-30,比-2,3,5都小
所以符合题干要求的有I 和III,选择D选项.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.