名校
解题方法
1 . 已知
,则函数
的最小值为______ ,最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4a4ffd142ec0bdc748ebe283dc05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030f95909e08a5e26f7d1b97d209ec29.png)
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名校
解题方法
2 . 已知正实数a,b满足
,则
的最小值为___________ .
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66a894fe1c8dddb41d9e4885e979a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c36723680999121c79ad8ee75d2b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b098834e9a4a77cb48ffcaa17858a8.png)
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2022-12-15更新
|
1013次组卷
|
3卷引用:天津市静海区第一中学2021-2022学年高三上学期第二次阶段检测数学试题
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3 . 函数
的图像是如图所示的折线段
,点
的坐标为
,点
的坐标为
. 定义函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b6b1cf38383f278954a9245a07a86a.png)
_________ ,函数
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dcf535c56011cd5d8da44f9d43e87d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b6b1cf38383f278954a9245a07a86a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/dfd15920-b9a1-42be-af30-be21d2a4278d.png?resizew=199)
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解题方法
4 . 我国南宋时期数学家秦九韶曾提出利用三角形的三边求面积的公式,此公式与古希腊几何学家海伦提出的公式如出一辙,即三角形的三边长分别为
,
,
,记
,则其面积
.这个公式也被称为海伦
秦九韶公式.若
,
,
则此三角形的面积为____________ ;若
,
,则此三角形面积的最大值为_________ .
![](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/a0f2d50ca5cc415bf6721faf2221d626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c667f76da3658f200fff8eadb24b8e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc8da8e91489c4c4735a423a4c3778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b97bb18e5ca34d22b5e827316a122a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd04c6b9cc47521108979a622c2b7c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
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名校
5 . 已知函数
,若
,则
的值域是__________ ;若
的值域是
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129be3d3b1b31ae07cd5dc2c1a729e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.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/7a92ba8b43bebdf7d6c40917f4d3e110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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2022-04-01更新
|
266次组卷
|
2卷引用:陕西省西工大附中分校2021-2022学年高一上学期期中数学试题
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解题方法
6 . 函数
的单调递增区间是________ ,值域是__________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07061f5da658af1327747c3503fd7d3.png)
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2022-03-04更新
|
354次组卷
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2卷引用:吉林省通化市梅河口市第五中学2021-2022学年高一上学期期中数学试题
7 . 已知函数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8156ac05b3eb5c5f05d67f43f449687a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4653b4a5255fa1cb87449a420c540946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2021高一·全国·专题练习
8 . 如图所示,在矩形
中,已知
,
,在
,
,
,
上分别截取
,
,
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ 时,四边形
的面积最大,最大面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25936291abb6432ed5a710ebf0ea195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f88030a71833665694a522a9490aa152.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://img.xkw.com/dksih/QBM/2022/1/1/2884998139830272/2887904699310080/STEM/0d5eac10-69be-4896-bc72-67dbf53f69ec.png?resizew=243)
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9 . 当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ 时,
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999704006ecff71ed498fccceae390a0.png)
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解题方法
10 . 已知函数
(
且
),①若a=3,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ea397e2a24c365778b27c9229a08ee.png)
________ ,②若函数
的值域是
,则实数
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593eb15647f562ae69d3df4ca9ddedca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ea397e2a24c365778b27c9229a08ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8445755d83a8478bb4886cfa7bbbd684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-12-20更新
|
408次组卷
|
2卷引用:河北省衡水市第二中学2021-2022学年高一上学期二调数学试题