名校
解题方法
1 . 函数
的零点
,则
的值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ff62cee44d7444c6b2a6317e031d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cecdaa831022199fbe85123faff7b32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
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名校
2 . 已知函数
,且
时,
,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ffcdd391beac3f6edb01295dfcb170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2d7ddd7ef3b6cde30018bc6a84b9e0.png)
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解题方法
3 . 定义:如果函数
在区间
上存在
满足
,则
称为函数
在区间
上的一个均值点.已知
在
上存在均值点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee49cd415b686374189f90102d23ef7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7c63ce0b2b86b4706c1f853b0e5e8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b532ab136f12f34e4e76ccef19c6919.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 若函数
在区间
上存在零点,则常数a的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34d5cfbe8830fd0456d3d28dccb6000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
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解题方法
5 . 函数
的零点个数为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd800afd09c020c65e6e553d33aa1a9.png)
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解题方法
6 . 函数
的零点所在的区间为
,则正整数
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf4a995981b89ab2b7ddbaacfdf4e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77be621343247beabcb7275f52da998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
7 . 用二分法求图象是连续不断的函数
在
内零点近似值的过程中得到
,
,
,则函数的零点落在区间_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a369f9056771d0a4c15deadba836a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d8cab1d285253a2239aaed71d8b5d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ef71e1a7496d5ad152ef5041805a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcde7473b241d300c1b7477e4991fd7.png)
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8 . 试写出一个实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ ,使得函数
在
上恰有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8674c1659b9d9592702a191d9218a329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
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9 . 已知函数
的零点为
.若
,则
的值是__________ ;若函数
的零点为
,则
的值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0125f1717322c3365ec7630272aec0ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120dddc15ec123fba6c4cf9284a3a771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d75eaa18e44eb3c10036fee9115f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
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10 . 若函数
恰有两个不同的零点
,且
,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6e96b0779def6cd234018f4264f8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
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