解题方法
1 . 在等腰梯形
中,
,若
,则梯形周长的最大值为______ ,梯形面积的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813d14803196f2fc6583b71db3358256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
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2 . 已知
,
,且
,则
的最小值是______ ;当
取得最小值时,
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6d474e6cd19b54fcc32889975ceb9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af4669c96dd79a2e582f744fc1bc442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af4669c96dd79a2e582f744fc1bc442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a042f7647c4310c80f7ffe144c81c0e.png)
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3 . 如图,某商场内有一家半圆形时装店,其平面图如图所示,O是圆心,直径MN为24米,P是弧
的中点.一个时装塑料模特A在OP上,
.计划在弧
上设置一个收银台B,记
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7223bf3fdadd6f44abce82899bc1ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913d94c18975459c5eb591afce8cc705.png)
_________ (用
表示):
(2)若
越大,该店店长在收银台B处的视线范围越大,则当店长在收银台B处的视线范围最大时,AB的长度为________ 米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae728c7be0f0cf78711f3fa5ccccf30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7b628bd4ac303c86e30508eb81ff60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa33d0f23b18d580b8b2afb0dfd0c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e595083e5fd6282c93a636c66680ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7223bf3fdadd6f44abce82899bc1ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913d94c18975459c5eb591afce8cc705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bc29145f6e7557711c34b443bd5e84.png)
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2024-04-16更新
|
327次组卷
|
2卷引用:福建省厦门市外国语学校2023-2024学年高一下学期第一次月考数学试题
名校
解题方法
4 . 如图,球
内切于圆柱
,圆柱的高为
,
为底面圆
的一条直径,
为圆
上任意一点,则平面
截球
所得截面面积最小值为__________
若
为球面和圆柱侧面交线上的一点,则
周长的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4f5433a5ff7e6d806eb3bfb34bd3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1726b15a51333bfaafb4f6f4a4e23cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad09714898da4802e86c6595f7c6dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4dd6baf95be502586df9f93582ddc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e707a7bea901a3af6aef3cd43ac685e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe65856674c95e6c04ae405f68cd74a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/17/21deb060-ea17-4e91-a482-f066f8f3c0e5.png?resizew=140)
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2024-04-13更新
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1137次组卷
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5卷引用:山东省菏泽第一中学人民路校区2024届高三下学期3月月考数学试题
5 . 在
中,D是AC边的中点,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
________ ;设M为平面上一点,且
,其中
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88530e4ddfb48424edb6c5cb8bdcf303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9751f0147fd5897623f8d87e85474ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02f5a9fe84e87ba1080438064a69a7a.png)
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解题方法
6 . 设正实数
满足
,则
的最小值是__________ ;当
取得最小值时,
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f560aa0118baaafa24de782983f5460a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a1be5c1350d02543a96399cc14a51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9a1be5c1350d02543a96399cc14a51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e792f06dbaa54f57626a1d9523fc5390.png)
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2024-03-12更新
|
114次组卷
|
2卷引用:河南省许平汝名校2023-2024学年高一下学期开学考试数学试题
解题方法
7 . 若闭区间
满足:①函数
在
上单调;②函数
在
上的值域为
,
,则称区间
为函数
的
次方膨胀区间. 函数
的2次方膨胀区间为_____________ ;若函数
存在4次方膨胀区间,则
的取值范围是_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91393ddcf411f513b77caad29a31cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6724c68c4206bd95683998d800f7f676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a993d222157197c263ae4a8255228a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c4821d3e69fbb6a1f8d0afe0d725f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
8 . 已知函数
,
(1)若
,则
的最大值是______ ;
(2)若
存在最大值,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3dfc91b2785375ab7426d9bfbcb5a5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
9 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c66a43bd12b60f74e53f33ad626581.png)
_________ ,
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2604f572a3a2d44ee91cf709c5017d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c66a43bd12b60f74e53f33ad626581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2024-01-19更新
|
650次组卷
|
4卷引用:北京市丰台区2023-2024学年高一上学期期末练习数学试卷
北京市丰台区2023-2024学年高一上学期期末练习数学试卷(已下线)【第三课】5.4.1正弦函数、余弦函数的图象+5.4.2正弦函数、余弦函数的性质宁夏青铜峡市宁朔中学2023-2024学年高一下学期开学考试数学试题北京市第三十五中学2023-2024学年高一下学期期中测试数学试卷
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10 . 若函数
的图象关于
对称,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
__________ ,
的最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f940f69c00028ae8bbf1e1b1a490b906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2024-01-18更新
|
472次组卷
|
2卷引用:广东省东莞市2024届高三上学期期末数学试题