(选做题)已知函数f(x)=log2(|x+1|+|x-2|-m), (1)当m 发布时间:2017-05-08 16:37 │ 来源:www.tikuol.com 题型:解答题 问题: (选做题)已知函数f(x)=log2(|x+1|+|x-2|-m),(1)当m=5时,求函数f(x)的定义域;(2)若关于x的不等式f(x)≥1的解集是R,求m的取值范围。
题型:解答题 Many teenagers say that _____ they have a lot of friends, they really have no best friend.A.whenB.whileC.ifD.because 查看答案