名校
1 . 如图,在
中,
是
边上一点,已知
,
,
.
![](https://img.xkw.com/dksih/QBM/2021/4/22/2705561437741056/2806355700523008/STEM/4bca25df36c8434d9ee3624824605179.png?resizew=266)
(1)求
的长;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dce3b0e853ec2895b3888dbfa41140c.png)
![](https://img.xkw.com/dksih/QBM/2021/4/22/2705561437741056/2806355700523008/STEM/4bca25df36c8434d9ee3624824605179.png?resizew=266)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce24bb3fd41549b12524dfbe736c0a19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b0ee4d3014800b3664cec93be49a9f.png)
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2 . 已知定义域为R的奇函数
满足
,且
,
(
且
)若函数
有8个不同的零点,则实数a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3533676dd1bd1840bf53a06107d548cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a567b9c60d60db3e5d0ac888bd748a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae2aaadae7915b33d128ffb9de5c3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e352e56475e3c1b9269a006e2b3dd9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知函数
,若
的图象上相邻的两条对称轴之间的距离为
.
(Ⅰ)求
的值,并写出
在
上的一条对称轴方程;
(Ⅱ)在
中,角
,
,
所对的边分别是
,
,
,若
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f9b901310abfd2474841e83f9250be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261f9fd5f3d2a67143cdf65cca376c73.png)
(Ⅱ)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7357e71680b385f7dd4de3c75d3789b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
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2卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(文)试题
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4 . 圣·索菲亚教堂是哈尔滨的标志性建筑,其中央主体建筑集球、圆柱、棱柱于一体,极具对称之美.犇犇同学为了估算索菲亚教堂的高度,在索菲亚教堂的正东方向找到一座建筑物
,高约为
,在它们之间的地面上的点
(
,
,
三点共线)处测得楼顶
、教堂顶
的仰角分别是
和
,在楼顶
处测得塔顶
的仰角为
,则犇犇估算索菲亚教堂的高度
约为(结果保留整数)( )
![](https://img.xkw.com/dksih/QBM/2021/8/6/2780158578745344/2782442562985984/STEM/845beac6-cd54-4c13-93f5-36f7dc767bcc.png?resizew=399)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4053cc2a31e9703bf80b62b5ea18c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c12e76fbd84eeec721386bd3b04cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/2021/8/6/2780158578745344/2782442562985984/STEM/845beac6-cd54-4c13-93f5-36f7dc767bcc.png?resizew=399)
A.![]() | B.![]() | C.![]() | D.![]() |
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10卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(文)试题
甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(文)试题湖北省宜昌市2020-2021学年高一下学期期末联考数学试题湖北省襄阳市、荆州市、荆门市、宜昌市等七市2020-2021学年高一下学期期末联考数学试题湖北省随州市曾都区第一中学2021-2022学年高一下学期5月月考数学试题重庆外国语学校(即四川外国语大学附属外国语学校)2021-2022学年高一下学期6月月考数学试题湖北省十堰市丹江口市第一中学2021-2022学年高一下学期期末数学模拟试题(4)甘肃省甘南藏族自治州第二中学2022-2023学年高二上学期期末数学试题江苏省盐城市阜宁中学2022-2023学年高一下学期第一次综合测试数学试题福建省莆田第二十五中学2022-2023学年高一下学期期中考试数学试题江西省宜春市宜丰县宜丰中学2022-2023学年高二下学期开学考试数学试题
名校
解题方法
5 . 已知
的三内角
,
,
所对的边分别是
,
,
,满足下列条件的
有两解的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
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4卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(理)试题
6 . 一艘海盗船从
处以
km/h的速度沿着北偏东20°的方向前进,在
点南偏东40°距离为
km的
处有一海警船,沿着北偏西10°的方向快速拦截,若要拦截成功,则海警船速度至少为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395424943f098d2c9a83d80039018429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395424943f098d2c9a83d80039018429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() |
C.![]() | D.60km/h |
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2卷引用:甘肃省民乐县第一中学2021-2022学年高三上学期10月诊断考试数学(理)试题
名校
解题方法
7 . 在
中,角
、
、
的对边分别为
,
,
,
.
(1)求角
的大小;
(2)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cc109c94901ed4950a0bd0a31be575.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb89535b70727dfa347bec6fe8c7fc9d.png)
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4卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(文)试题
甘肃省张掖市某重点校2022-2023学年高三上学期期中检测数学(文)试题广东省广州市禺山高级中学2019-2020学年高二下学期期中数学试题江西省萍乡市芦溪中学2022-2023学年高一上学期期末数学试题(已下线)高一下学期期末复习解答题压轴题二十四大题型专练(1)-举一反三系列(人教A版2019必修第二册)
名校
8 . 如图,
是一条东西方向的公路,现准备在点B的正北方向的点A处建一仓库,设
千米,并在公路旁边建造边长为x千米的正方形无顶中转站
(其中边
在公路
上).若从点A向公路和中转站分别修两条道路
,已知
,且
.
![](https://img.xkw.com/dksih/QBM/2021/7/17/2766401318322176/2770195452862464/STEM/edfc1491a8d74836b6993456481406f5.png?resizew=160)
(1)求y关于x的函数解析式;
(2)如果中转站四周围墙的造价为10万元/千米,道路的造价为30万元/千米,问x取何值时,修建中转站和道路的总造价M最低?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7566a5678f868ffb7c6d0c2d912ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf67486ca72d9d0e7cb83ebe04326cd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://img.xkw.com/dksih/QBM/2021/7/17/2766401318322176/2770195452862464/STEM/edfc1491a8d74836b6993456481406f5.png?resizew=160)
(1)求y关于x的函数解析式;
(2)如果中转站四周围墙的造价为10万元/千米,道路的造价为30万元/千米,问x取何值时,修建中转站和道路的总造价M最低?
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|
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3卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期第二次检测数学(理)试题
名校
9 . 已知函数
在区间
上单调递增,且
在区间
上有且仅有一解,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2a62b7e41b73f9a06ee27633f48306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1da1605e6a3419c36192f39bdb0833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28638f8c054a7bb4d9b46fde330bc76f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24192cace1d2a643fc3a42a5b7ac273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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11卷引用:甘肃省民乐县第一中学2021届高三押题卷(二)数学(理)试题
甘肃省民乐县第一中学2021届高三押题卷(二)数学(理)试题(已下线)考向19 三角函数的图象和性质(重点)-备战2022年高考数学一轮复习考点微专题(新高考地区专用)(已下线)专题二 能力提升检测卷(测)- 2022年高考数学一轮复习讲练测(课标全国版)(已下线)“8+4+4”小题强化训练(19)三角函数的图像与性质-2022届高考数学一轮复习(江苏等新高考地区专用)(已下线)专题06 三角函数-备战2022年高考数学(文)母题题源解密(全国乙卷)(已下线)考点09 函数方程-备战2022年高考数学典型试题解读与变式(已下线)专题16 三角函数的图象和性质-学会解题之高三数学万能解题模板【2022版】(已下线)经典好题4 参数范围 数形结合【练】江西省遂川中学2021-2022学年高二上学期第二次月考数学(文)试题(A卷)广东省汕头经济特区林百欣中学2022-2023学年高一上学期期末数学试题四川省广安市第二中学校2022-2023学年高一下学期第一次月考数学试题
名校
解题方法
10 . 在
中,
、
、
分别是角
、
、
的对边,
.
(1)求角
的大小;
(2)若
,
的周长为
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0a53c6ae4541eff91065bf47cf611e.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8653af649d2a1b22f50c8529ef43136d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271aaa19032503bce223a3c7cbafd1ea.png)
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4卷引用:甘肃省张掖市某重点校2022-2023学年高三上学期第二次检测数学(理)试题