已知
,则
=_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac83d0434761844c13b9d7293a589c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
更新时间:2023-04-20 07:15:19
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解题方法
【推荐1】已知曲线
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,
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上任意两个不同点,若
,则称
,
两点心有灵犀,若
,
始终心有灵犀,则
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__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/762a9015473e9ec9b21eccc15224ff72.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】在
中,已知
,b,c是角A、B、C的对应边,则
①若
,则
在R上是增函数;
②若
,则
是直角三角形;
③
的最小值为
;
④若
,则
;
⑤若
,则
,其中是真命题的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41da79d9723713ee850a05badadbf051.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5584067a2df1ebf7a7855cfa1f6a068a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2762388f1594094c117c87e1e0889668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a115b91b3197f7ab0a494bb9ebf3ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c1b7825d127361aefa124e782ecb23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290f51a4f8c6f6be8397c831b4127048.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb95df806860228ffeff6ddc218588.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106fdc9ac8c9fc89b7671792b09806f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4eb95df806860228ffeff6ddc218588.png)
您最近一年使用:0次