名校
1 . 已知函数
的图象关于直线
对称.
(1)求实数
的值;
(2)若
时,关于
的方程
有四个不等的实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d566cc50283930e80764affd45c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feed53a8c562448cdf8ab1534cc4c8ef.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3341c6eeb3c5c4d1107deffb54fbdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c5b3241b1cb1e7e0fad267f390c5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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名校
2 . 已知函数
,若
的图像的任意一条对称轴与
轴的交点的横坐标都不属于区间
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84572877c9924ed5a36a2a2515c2f5a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcafbbaa528da9c6f88783398ba5d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3 . 设函数
的图像关于直线
对称,它的周期是
,则以下结论正确的个数( )
①
的图象过点
;②
的一个对称中心是
;
③
在
上是减函数;
④将
的图象向右平移
个单位得到函数
的图象
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31c1dbd74f3677e01217b570c46f2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c23a3abb4cbfbf42adceecffb1521958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d655ee6d4c2285b6f59652360862d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a83571e1cbc31c560f83e5f1e6a4b9f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c7c353d4ef44f3f400aed8e47f35658.png)
④将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d061d17bbc13e2d61a0c4aee0cb9ced3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7a057740885e01a8e4b5448a626645.png)
A.4 | B.3 | C.2 | D.1 |
您最近一年使用:0次
名校
4 . 已知向量
,
,设函数
,若函数
的图象关于直线
对称且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170b261b3b55d9e7492d227dec57540c.png)
(1)求函数
的单调递减区间;
(2)先列表,再用五点法画出
在区间
上的大致图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323abdb525c194c179336f3539b21e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94db155e350227a88fd20f7a399f6b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd729825112a26d4b2fa52d96cdb081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170b261b3b55d9e7492d227dec57540c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)先列表,再用五点法画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c494abdab9ba221e240b4bfa5c7f7a99.png)
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解题方法
5 . 将函数
的图象沿
轴向右平移
个单位(
),所得图关于
轴对称,则
的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fb1f6cff99e4d592eaecda527adb81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知函数
的图象关于直线
对称,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c3bf31a7a4d46a9c8263cd92c40cb0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8973254e0eeb29a0add0e4677ce5337b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08a8d9cfc6ebe2aa073a595905c9853.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() |
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7 . 已知函数
的图象可由函数
的图象平移得到,且关于直线
对称.
(1)求
的值;
(2)求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2afc3ff03a15347e4b1e270d34825953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b7303c20aa276076074282802c004a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9895bf4192f5c55c16f8270d53c49b13.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60edd6f22af315c5a5d77e741149e63f.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41ead8c199f0b65d4444e646740054e.png)
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