已知a,b,c,d为实数,且c>d,a>b是a+c>b+d的什么条件
人气：380 ℃ 时间：2020-06-15 07:09:57
解答
c>d,a>b是a+c>b+d的充分不必要条件
由c>d,a>b能得到a+c>b+d
但是由a+c>b+d不一定能得到c>d,a>b
推荐
- 已知a,b,c,d为实数,且c＞d,则a＞b是a-c＞b-d的什么条件
- 已知实数a,b,c满足条件
- 实数a.b.c.d满足下列三个条件
- 已知a，b，c，d为实数，且c＞d．则“a＞b”是“a-c＞b-d”的_条件．
- 若实数a,b,c,d满足条件_______,则a-b>c-d
- time_____,we will visit some other interesting places
- The desk has two d_____ and there are some books in them. Your r_____is big and bright.
- 16. This is military _________, and no body is allowed to get in without permission.
猜你喜欢
