解题方法
1 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d892b1dd6238c35f723fc02fdf194ece.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e7ca65e79da358bddd6051cab2fbf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d892b1dd6238c35f723fc02fdf194ece.png)
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2 . 设
为常数,若点
是双曲线
的一个焦点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551b3901b8d96e193947d239eb3b2e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c166717c4f5051b4e3a416d8da12e8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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3 . 在
中,
为边
上一点,
,
,
,若
的面积为
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2544d2219b85e4f5fa78ff110a7a1e30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0188b06b514e41f298449ede057e2062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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4 . 设
,
,则
与
的大小关系是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f3564dfbe6102f878a6a157b02f87f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de5514a1ced81f3b2cf0752274bd90ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
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5 . 已知样本数据为
,
,
,
,
,该样本平均数为5,方差为2,现加入一个数5,得到新样本的方差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9b42973c53907f09f2de384c42fc5f.png)
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2021-10-14更新
|
600次组卷
|
4卷引用:内蒙古鄂尔多斯市第一中学2021-2022学年高二上学期第一次月考数学(理)试题
名校
解题方法
6 . 已知定点
、
,直线
:
(
为常数),若点
、
到直线
的距离相等,则实数
的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ed90ebf0061c8a79beed307fc1719a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12796b93f8489abab501f6896d5359dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f8f50bedc3080565e6f0bc3b2507f8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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7 . 若
,则使得
成立的角
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4727ee0a3f2b15b27bfc8bd66ae525c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d30f131027b273b7894d03e9294907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
8 . 若cos
=
,则cos
=____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fde97c3340b75526f1076776b37cbc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65353223a434f27f140c99473b2fe40.png)
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9 . 若函数
在
上的最小值是
,但最大值不是
,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382a2da37c393acc12a289730c35443f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51f8dea12d1325fd657eb9875823b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2021-07-21更新
|
417次组卷
|
3卷引用:内蒙古鄂尔多斯市第一中学2020-2021学年高一下学期第三次月考数学(文)试题
名校
解题方法
10 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4296de23b6270380e057b35de0b807cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
您最近一年使用:0次