1 . 命题“
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34acdac912b5149f7f72a7ec95853365.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . (1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd7cdcf1c5b8530538e2687ca64ee6b.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd7cdcf1c5b8530538e2687ca64ee6b.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfaf5c3251522039ad2a2c5b0d68ffb.png)
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解题方法
3 . 已知函数
,且
.
(1)求函数
的解析式;
(2)用定义证明函数
在
上是增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35fc4a430ac9cc0cc23a051d915c70a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbdf18d833a156104a3beb25fc8a76a.png)
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4 . 函数
的单调递增区间为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9b5c3c10cd7f1c73246b888a4257b0.png)
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解题方法
5 . 设
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41bd9335fcdce0b068c2cdf16f67eab1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 已知
,则
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfca320f486769aadf84bc49d50cdd7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f9c38bbecb500556ce3ca3bd2b6cc3.png)
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名校
7 . 设等差数列数列
的前
项和为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39119df34faa2d46049ff12968f08ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554e6c461ccc5aa3093c524aa528a4e2.png)
A.30 | B.28 | C.26 | D.24 |
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解题方法
8 . 圆心为
且过原点的圆的一般方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0924ff22fff9f5639feb0ceeece80d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
9 . 设等差数列
的前n项和为
﹐若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6d3d768cd00a21b3aca22aa64ac3c4.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3903653955c424d3f6135edc5b47e231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2111370b3a3b575b7cac52bec12395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6d3d768cd00a21b3aca22aa64ac3c4.png)
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解题方法
10 . (1)求经过点
,倾斜角为
的直线的一般式方程.
(2)
的三个顶点是
,求边BC上的中线所在的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece76d075b29c940091613177e79f601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b99574ad7311ad6f7a9a9f3d25d751.png)
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