2024·全国·模拟预测
解题方法
1 . 已知函数
.
(1)画出
的图象;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b06cd4e4730f04a5de97370bafbe6e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/a5fba46c-5fdd-4519-8b23-864d8f7fec7a.png?resizew=110)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975f392f7f9569d901c3f59c4e986d9a.png)
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2 . 已知二次函数
的图象过原点,且满足
.
(1)求
的解析式;
(2)在平面直角坐标系中画出函数
的图象,并写出其单调递增区间;
(3)对于任意
,函数
在
上都存在一个最大值
,写出
关于
的函数解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa7ce6983a3147fee5418459cf7d7ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/fe85e3ab-a1f2-4264-ae25-1cb2449037d3.png?resizew=200)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)在平面直角坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f790223ffd7df9fb44eb11a4c4ce6542.png)
(3)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1553f685ec1fa7f96ceb99456d00c335.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f790223ffd7df9fb44eb11a4c4ce6542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4712903dc7b8c313dcb7578d641c43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
是定义在R的偶函数,当
时,
.
(1)请画出函数
图象,并求
的解析式;
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/6ec28d4e-fa70-441a-aca3-bc53a06205ed.png?resizew=235)
(2)
,对
,用
表示
,
中的最大者,记为
,写出函数
的解析式(不需要写解答过程),并求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119e06d01d35c30f2166624271535bff.png)
(1)请画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/7/6ec28d4e-fa70-441a-aca3-bc53a06205ed.png?resizew=235)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb38f882b0c43421f768b42bc69552b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a976d91358362fa49d6da8021fd47e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c694cf892ee07daa54bdd9f2fb421e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2436715f7e189af4171b7b259705d1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c694cf892ee07daa54bdd9f2fb421e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c694cf892ee07daa54bdd9f2fb421e2.png)
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解题方法
4 . 已知函数
是定义在
上的奇函数,当
时,
.
(1)求函数
的解析式;
(2)画出函数
图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e5096d26e305d6921b323ca55d5f17.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
5 . 已知函数
是定义在
上的奇函数,且
图象如图所示.
(1)根据奇函数的对称性,在如图的坐标系中画出
时图象;
(2)①求当
时,
的解析式;
②说明当
时,
的单调性并用单调性定义证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac87434324956e4145e38ad92a1aa95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3549d9f830745a7408e1c3c1cb3c29a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/26/05a53d47-2ce9-4987-8317-f8ac4d606c0d.png?resizew=168)
(1)根据奇函数的对称性,在如图的坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
(2)①求当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
②说明当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc95bc46e0aa25342600533d9a6082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
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解题方法
6 . 已知函数
.
(1)画出函数
的图象,并写出函数
的值域及单调区间;
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/b8511c19-24a7-4003-850f-eeaa5809bd99.png?resizew=163)
(2)解不等式
;
(3)若
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32648060f5e3e810c65f962fa2ea41b0.png)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/b8511c19-24a7-4003-850f-eeaa5809bd99.png?resizew=163)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476e65208aaf36809ee0d65fc61c4dbb.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a743e9d797611bdc5fea0621668bb78c.png)
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7 . 若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea68890e6195fd9ca53ddbc9630999c.png)
(1)在给定的平面直角坐标系中画出函数
图象;
(2)利用图象写出函数
的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea68890e6195fd9ca53ddbc9630999c.png)
(1)在给定的平面直角坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)利用图象写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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8 . 已知函数
.
(1)当
时,在平面直角坐标系中画出函数
的图象,并求出函数
在
上的值域;
(2)讨论函数
的定义域、奇偶性、单调性.(单调性只写结论,无需说明理由)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1982786864f37e6f954e8d70f9970620.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/19/e47973b3-b528-4584-b20c-493dfbf64d38.png?resizew=190)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745eb631342dcfee91d7d7e8ccb4375b.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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9 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/034e9b4b-83dc-4f00-b6d5-50fad040c8a9.png?resizew=215)
(1)画出函数
和函数
的图象;
(2)若不等式
恒成立,且
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b06e4b011ea919382c3f8927471c430.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/034e9b4b-83dc-4f00-b6d5-50fad040c8a9.png?resizew=215)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927a4e1323f16d9a32d5fdb50291f050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
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2024-02-24更新
|
62次组卷
|
2卷引用:【押题金卷】2022年普通高等学校招生全国统一考试理科数学试卷(B卷)
10 . 已知
,
.定义
,设
,
.
(1)若
,(i)画出函数
的图象;
(ii)直接写出函数
的单调区间;
(2)定义区间
的长度
.若
,
,则
.设关于x的不等式
的解集为D.是否存在t,使得
?若存在,求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18da1ecd1a83afc4544ee71f00c56b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92fd3003a50fc4b754f134fe799b12a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b6e7402f4f1369855b7b085a5d2ae3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769ef52deedb5a708760656f9c26094c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31877fa2d6f8a70a5b9aeb1d8b59310c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/25/45865a78-4ce4-4fb1-b56a-26ab4f523167.png?resizew=169)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66884efff7400f92b530d69d029778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
(ii)直接写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
(2)定义区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a421dcdff3dff08169805bfa9743b6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6ef9c3a133abc84cce48028dc61c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad8e44a8c7c4f7aed5e3829f9974a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c155c7051a694bd792dce709111334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72de315b1f39290021ef0f05349b25a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ed2fb4a6389a9994694ba9aa5e6422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d008aab3aadca7fb9ba7400f3121542.png)
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