解题方法
1 . 已知圆锥的高为1,底面直径
,则一蚂蚁从点A沿着侧面爬到点B,爬行距离的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
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2 . 在
中
,则该三角形是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81aafa2474d9bb2be7afb8ca4193a044.png)
A.锐角三角形 | B.钝角三角形 |
C.直角三角形 | D.前三个答案都不对 |
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3 . 由
和
所围成的平面区域的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3fa26cab1e39ceaf3b37a393310749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eddfda9fe25a94cfd020473652418a65.png)
A.6 | B.![]() | C.![]() | D.前三个答案都不对 |
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4 . 把正整数中的非完全平方数从小到大排成一个数列
,例如
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66cb8d349f2380af5f4239e9035765eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d223b14a5b0cc0cff2d20f90557b081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08be9681cf2689ffe4049c6dbb7b171f.png)
A.2061 | B.2062 | C.2063 | D.前三个答案都不对 |
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5 . 已知数列
,其中
(a,b是正整数),若2008为数列中的某一项,则
可能的取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f559e6103728174681d014d368384832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.8 | B.9 | C.10 | D.11 |
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6 . 已知整数a,b,c为三角形的三边长,其中
,且
,则符合条件的
的个数为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9640cb4b70236b7ef3f388fb7d502d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f9c88edac18a30697feb5a9956b70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77ca5176d6b4a69eb76ecb2aa6bac29.png)
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7 . 已知
,若存在
,使得
,则a的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b3ad88b91c652ebca05dbc06f3eacbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf20055a60ed12b050669fa09e26827.png)
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名校
8 . 在平面直角坐标系
中,给出如下定义:对于点
,若点
坐标为
,则称点
为点
的“朋友点”.例如,点
的“朋友点”为点
.已知点
的坐标为
,点
的“朋友点”为点
,点
的“朋友点”为点
,点
的“朋友点”为点
,点
的“朋友点”为点
,则点
的坐标是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5e56e5b067c66d6b3e16ee4e934241.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/990eaf5dbba84f199bdc438da81fcfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349185b5825ece65b7b45d91003a5419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a40c26831b1ea4691c405ddffb3db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4dd0a24e4256bed5828b10a588b29e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4dd0a24e4256bed5828b10a588b29e6.png)
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名校
9 . 如图,圆
的内接四边形
的顶点
关于
的对称点恰为
的内心
,
.则圆
的半径为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32f01c4faacedfe56f5127d6c0cc63cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2023/5/18/3240515094872064/3240976658817024/STEM/d5f71ea599f343f2bffcde925d57ec9e.png?resizew=127)
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10 . 设x,y,z是大于零的实数,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df6275d4f738674da914b8fdc058659.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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