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1 . “
且
”是“
且
”的______ 条件(填“充要”、“充分不必要”、“必要不充分”或“既不充分也不必要”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a871ef7bf13de3e15489d65b57a3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d2a320b9ff137ce3632296c4b1d79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b12a22ac48dcbc70d95f03371d874f.png)
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2022-09-23更新
|
1225次组卷
|
3卷引用:江西省抚州市乐安县第二中学2022-2023学年高一下学期期中数学试题
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2 . 已知
,且
,
,则x,y的大小关系是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544530e1133b2924ccfbe691141a5641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ddc4a5e57f05389bff638d961f4f497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055b31065cc0790b8d0fe484b3849067.png)
您最近一年使用:0次
2022-04-22更新
|
353次组卷
|
4卷引用:江西省赣州市六校联考2021-2022学年高二下学期期中数学(理)试题
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解题方法
3 . 若
有下列四个不等式①
;②
;③
;④
.则下列组合中全部正确的为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b691c3b789f43451497aee76eaaab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58dcb5ddd610445426dcf3dc15f252f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81768451a5251590e3c4c93a9b044b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff30ad3505c73e135031d6373c17ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa89b9a011c560e35d4c3f1ce3a27fe.png)
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