名校
1 . 求抛物线
在
处的切线与抛物线以及
轴所围成的曲边图形的面积.(要求作图)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2 . (1)求对数曲线
在点
处的切线方程,并画出对数曲线和所求切线的图象;
(2)再观察(1)中的图象,你可以发现___________,即_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
(2)再观察(1)中的图象,你可以发现___________,即_________.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/5/76bc5f76-6dde-4468-827f-eb04411e4296.png?resizew=185)
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解题方法
3 . 贝塞尔曲线(Beziercurve)是应用于二维图形应用程序的数学曲线,一般的矢量图形软件通过它来精确画出曲线.三次函数
的图象是可由
,
,
,
四点确定的贝塞尔曲线,其中
,
在
的图象上,
在点
,
处的切线分别过点
,
.若
,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/6cb9e88d3e58141dba299dcd8edc4e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb6fd712d967a36c027693a54f91470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f63f0bdeade1904c747ec9ef0ff3443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d776a89f4fd29dccffe1040069d59ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 已知函数
在
处的切线l.
(2)在同一坐标系下画出
的图象,以及切线l的图象;
(3)经过点
作
的切线,共有___________条.(填空只需写出答案)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8f8f1c47e643c51225fb48b2fac810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)在同一坐标系下画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8f8f1c47e643c51225fb48b2fac810.png)
(3)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a20a61d384b658080b92d8c1a9e7c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8f8f1c47e643c51225fb48b2fac810.png)
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名校
解题方法
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b531609ea70e9a3d2e91d42581d4665.png)
(1)求函数
在区间
上的最值;
(2)在所给的坐标系中画出函数
在区间
上的图象;
(3)若直线
是函数
的一条切线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b531609ea70e9a3d2e91d42581d4665.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
(2)在所给的坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bd2644fced5f81092a4c42a0d52741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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6 . 根据下列条件,分别画出函数
的图象在这点附近的大致形状.
(1)
,
;
(2)
,
;
(3)
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a182bc70612b5d361c3caeadfea19fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe645cfa4c2cfaaf016b1003fc378d9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765d6fea26d8e02b91525cfb02914058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f3ab807f749ec60ef4707146d7149c3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d1c8c20f76765aaca84d7abf77db8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c55c012bff05c459537ac7b8f4fea2e.png)
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