1 . 一学生在求解以下问题“已知函数
的图象关于直线
对称,关于
中心对称,且
,求
的值”时,思路如下:令
(
,
),由对称轴和对称中心可求得
,再由对称轴求
,对称中心求
,根据以上信息可得( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c6155a8a04ffd4c305add626074fea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcef60e5d4f3b49a3c6e2507e8998439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e918c9e2cd089a6d62bc9234c8d95ee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f9555de3ac5de1ea69adc703b48044.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb61a448347a3f8c1f126d1c00730cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ffd26ee71de49bd8c5deba8f623159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 美国数学家Jack Kiefer于1953年提出0.618优选法,又称黄金分割法,是在优选时把尝试点放在黄金分割点上来寻找最优选择.我国著名数学家华罗庚于20世纪60、70年代对其进行简化、补充,并在我国进行推广,广泛应用于各个领域.黄金分割比
,现给出三倍角公式
,则
与
的关系式正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81985a014e5ec03e5b03d6efe6e2824f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1be98fa040ba50cd1a38eea2a51d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1e86c5abdaa1ca8599ffa5e933e046.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 如图,已知梯形
中,
,
,点
,
分别为线段
,
上的动点,
,点
为线段
中点,则以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc9cd61f54d45b905a295b35cdbe9d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7031367b886986db7850cdc47e2bec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.若![]() ![]() | B.![]() |
C.![]() | D.若![]() ![]() ![]() |
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名校
解题方法
4 . 我国历史悠久,各地出土文物众多.甲图为湖北五龙宫遗址出土的道家篆书法印.图乙是此印章中抽象出的几何图形的示意图.如图乙所示,在边长为2的正八边形ABCDEFGH中,P是正八边形边上任意一点,则
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7aaa871ceb78e5b80b531a7cf4f1c9.png)
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7日内更新
|
186次组卷
|
2卷引用:浙江省浙江山海共富联盟2023-2024学年高一下学期6月联考数学试题
5 . 宋朝诗人王镃在《蜻蜓》中写到:“轻绡剪翅约秋霜,点水低飞恋野塘”,描绘了蜻蜓点水的情形,蜻蜓点水会使平静的水面形成水波纹,截取其中一段水波纹,其形状可近似于用函数
的图象来描述,如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4f29a473e9757d8f24f627f52e9e15.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3434f3860fb9e47ab2b8ef93eae2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc4f29a473e9757d8f24f627f52e9e15.png)
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解题方法
6 . 下列说法正确的有( )
A.若角![]() ![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若扇形的周长为![]() ![]() ![]() |
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7 . 已知向量
,
,定义运算
,同时定义
.
(1)若
,求实数
的取值集合;
(2)已知
,求
;
(3)已知定义域为
的函数
满足
为奇函数,
为偶函数,且
时,
,是否存在实数
,使
?若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7ec6dba44a83ae69146c26a2eec325c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66717aa3e7a771427c1d4433c77a5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4817c9821c3c5268e665a3ebcfe2e9cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153f8261059b286d175e53adb666d0bd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e993a236a70e4a094013a28c07079f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237b1a6f3e6ee0ef92b4aef7bffe58ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5285f8cfbab2baf73267d7649a58ac.png)
(3)已知定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91340ce6d32493c33527a32c2d448896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffde73ff7d3cd5125eb8d8a17a9f01c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994dcf841d356002fcebaed37497013c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de03de9f4bea859252f0158b32acf378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb0b435b3f1a00ee1df0d02384d6e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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8 . 在等腰梯形
中,CD的中点为O,以O为坐标原点,DC所在直线为x轴,建立如图所示的平面直角坐标系,已知
.
;
(2)若点F在线段CD上,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2d09493b38fc4c41cb19f0c4b6f53c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1239d20fa03551421f0949d878fe541.png)
(2)若点F在线段CD上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aef759150f9e9a60042788fbf1a7ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980201d3fea976d86a818fee73faf1bd.png)
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2024-06-16更新
|
289次组卷
|
4卷引用:河北省保定市定州市第二中学2023-2024学年高一下学期5月月考数学试题
名校
解题方法
9 . 已知函数
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f66bd602858b6b31b0888a69740099.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若函数![]() ![]() ![]() |
D.若对任意实数![]() ![]() ![]() ![]() |
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2024-06-11更新
|
652次组卷
|
2卷引用:辽宁省沈阳市2024届高三教学质量监测(三)数学试题
10 . 函数
(
)经过点
,
图象上距离
轴最近的最高点为
,距离
轴最近的最低点为
,若
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec89c3bc454d209007c2b29baeeb3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e1a59013f87211094fdce5078bd839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe413b12ffabfb252121aa2eaa31017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea805a29a745227697f6dce0612839b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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