名校
解题方法
1 . 已知
是定义在
上的奇函数,当
时,
,若关于
的方程
恰有4个不相等的实数根,则这4个实数根之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7425c1cbc2939d2ae36c7dd69f4a7d05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2b56dd818e3d1a763c1d49ae831f6d.png)
A.![]() | B.8 | C.![]() | D.4 |
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2 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61daa9ee80b1b367d630e74827403e0.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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解题方法
3 . 设函数
的定义域为
,对于函数
图象上一点
,若集合
只有1个元素,则称函数
具有性质
.下列函数中具有性质
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a901ef0e56e25ddffbda301652ca403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4220560ed0c8cbe694e6e6e35260af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 函数
的部分图象如图所示,其中
两点为图象与x轴的交点,
为图象的最高点,且
是等腰直角三角形,若
,则向量
在向量
上的投影向量的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36db901c68dcf6a1b32bb6a7ddb6e795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91c5e90d32eeb2884d9ffdb86c96b3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef2723673c90347f6dd58346278c7fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5f1b06a56fc382feed28e01f1ad102.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
5 . 已知函数
.
(1)若
,求
的值;
(2)已知
在区间
上单调递增,
,再从条件①,条件②,条件③这三个条件中选择一个作为已知,使函数
存在,求
的值.
条件①:
;条件②:
;条件③:
在区间
上至少2个零点.
注:如果选择的条件不符合要求,第(2)问得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbf9eb8cd02852406f3115b17e595a1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d25c789bd8d26f27acd11b80cf2cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0c7cf6f381f5803d65c6a7014d39af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdad7c28041bc61fd822e8a33f2544b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69b5b8c4c24eab782174c5cae1b88a5.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7508db15f81fabe54130981952183a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f731fdfcdafc39b138391f8ce9e69f92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa1fa2962c5887bae137fb85b46f30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956e9bc10add9264e2bb4b03e34cfc19.png)
注:如果选择的条件不符合要求,第(2)问得0分;如果选择多个符合要求的条件分别解答,按第一个解答计分.
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6 . 函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea9cd8595bbfb83890ac30b70031741.png)
的图像记为曲线F,如图所示.A,B,C 是曲线
与坐标轴相交的三个点,直线BC与曲线
的图像交于点
,若直线
的斜率为
,直线
的斜率为
,
,则直线
的斜率为____________ .(用
,
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea9cd8595bbfb83890ac30b70031741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f8f734322eb274c2dc70bf52d0b04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1222d3090abe74ee289ac9de7fe29d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
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7 . 某导航通讯的信号可以用函数
近似模拟,若函数
在
上有3个零点,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40331f4cff6d5e038ab3fcfe09146ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbae0d22d931ac42b565c7990764a2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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|
2卷引用:四川省百师联盟2024届高三冲刺卷(五)全国卷理科数学试题
8 . 已知函数
的部分图像如图所示,
,
为
的图像与
轴的交点,
为
图像上的最高点,
是边长为1的等边三角形,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a145bd103374590092785fd754ad534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8dd6fc93467033605abeb8355d089c.png)
A.![]() |
B.直线![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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名校
9 . 已知函数
,若把
的图象上每个点的横坐标缩短为原来的
倍后,再将图象向右平移
个单位,可以得到
.
(1)求函数
的周期和解析式;
(2)求
在
上的值域;
(3)若
在区间
上有5个不同的解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5b1f8c1dfdfeaa77fe7004201403b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b129d5bd03bd4e3895dcb15bec8eedf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8fa4cd0822ad07ef0d2af24428ab9ff.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6547672c4d5ec67b6a3cf1b0eb0818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
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名校
10 . 已知函数
在区间
上恰有两个零点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8f65737dc55384c57c6a3f1f0a87e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71163f419555f2ed76075c8ff659fbfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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