解题方法
1 .
为正实数,满足
,求
的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751e274e9107d780c39ba9c49d6daefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19cb3b888b46a0c5e62ccbb09bd77ba.png)
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解题方法
2 . 设
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5083da35f1c479de1ce005364043da3.png)
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b958dc0b71559463006d1d5894d12c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5083da35f1c479de1ce005364043da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e3fdecd7a072eac3619a2b5082e63a.png)
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3 . 整数列
,
,
,对
有
,
为固定正整数,求使
成立的
的个数______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f241a73bf197764cebade47dcd9a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/401b7a6ae9616f1f3a27ff11c8abf2f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed352cca4f2ffd027a1f203bc4e51bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cc773ef279d9960a90052c5b710e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f6a09c6d8b804e7214da49256f0317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b25b0878c79813d60afc929c6319434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
4 . 复平面
与
交点个数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87432634f161e669f23527a5fc813ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
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解题方法
5 . 在平面直角坐标系xOy中,方程
表示椭圆,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5a0893d8d44a7c6445489474cadc44.png)
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解题方法
6 .
中,求
的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc560077f5b3ca96bc17481f4bf9467.png)
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7 . A,B,C为
内角,x,y,z为实数,求以下三式中恒成立的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad95998658d2ab5aad3714e2276bb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5870e3149fc4cec4c7066ea95db8e5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad95998658d2ab5aad3714e2276bb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5870e3149fc4cec4c7066ea95db8e5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df217a60bbc39645dd98a10ebc809e5.png)
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8 . 有__________ 个不超过2020的正整数k,满足对任意的正整数n,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c9ff61597941cfa81be2ac40265667.png)
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9 . 对实数
,不超过
的最小值的最大整数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14db6b568531ef989bb26227d54d3055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b02667b48e703f5a4cdae6201ee3458.png)
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10 . 设递推数列
满足:
,如果对任意的首项
且
,数列中一定存在某项
,则不超过
的最大整数是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50836192856e048e1fe207d0b61bc1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5224c5faa2f07d81db12c937e3a38d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4be043e433182a1255ef5bf2ff2c96fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe1593b8834ccf3f3ddd52a8deec97db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a38189db22659e85d0baf16dbf5444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085d58fb6a91ae4e7712dfa55baff725.png)
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