1 . 函数
的零点的个数及其分布情况为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1e19ec9aefb9b925ea56204334c161.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() |
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22-23高一下·江苏南通·阶段练习
名校
解题方法
2 . 函数
的零点为
,且
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a005fd11298473d6854d28a474db642d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e94b88a4470a35987a2b9a4736bdc7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a173784888adf2946382fa093ba53a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.0 | B.1 | C.2 | D.3 |
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3 . 函数
的零点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5781bddb83a12bb348c18990d6336f3b.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2023-07-10更新
|
363次组卷
|
3卷引用:四川省成都市2022-2023学年高二下学期期末零诊测试文科数学试题
4 . 已知函数
,
.
(1)求
的单调区间;
(2)若
有两个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1185a0322ad37b3293b633ce4ac5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)求
![](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
5 . 已知函数
.
(1)求
的单调区间:
(2)求证:
在区间
上有且仅有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75dffc6ea4ed5accfdef33e2d766466.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/879234adbae93aa72b7e101b3738d4e0.png)
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解题方法
6 . 已知
,
,
则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8562a19e5f9fefe26d6fed754cc041d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c7a04bb595ecf92444a84c37dfec369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f05b5363c09af0699b4c2ce6f9bf0eff.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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7 . 已知函数
.
(1)若函数
与
的图象有一条斜率为1的公切线,求
的值;
(2)设函数
,证明:当
时,
有且仅有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739e9f9d0b66d8103a84716812c7d812.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b1c31098853d5b1638705a2b86f7b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2f4630b66f80a5f2b7f186e49b321e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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8 . 英国数学家泰勒发现了如下公式:
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d11d6d0ff7e23315ab385370425696f.png)
,其中
.可以看出这些公式右边的项用得越多,计算出
、
和
的值也就越精确,则
的近似值为_________________ (精确到0.01);运用上述思想,可得到函数
在区间
内有_____________ 个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/213f40eef1362319f649c07d6171814f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e001efee18e05afab241c12334d98cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d11d6d0ff7e23315ab385370425696f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e21bd94ffce3e1b4d54416817f95dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815fbba8af7b1ecfb112be6b04284191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad040ae0fab73f5dd7b1af48cd3b5f93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a48345d239aaf8e9ca1ff2846c08a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66db91bb3be9e2b6ad567774e3699758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e6a7ee66d46b2d55c8ee0ba35fdd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff1c2df9027e8d204599b12ab884c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8948104535304411538be67474777c9.png)
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22-23高二下·江苏南通·阶段练习
9 . 函数
的零点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9751ea12e506bc436a3be8fe1e17b13d.png)
A.1 | B.3 | C.5 | D.7 |
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解题方法
10 . 已知函数
.
(1)若
,求
的值;
(2)已知函数
的图象经过
,
(i)若
,求
的值;
(ii)若
的三个零点为
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e2eb28a3be991d04869ac956c473a1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c809787e19abe7537c6b947d8cf390cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42cfa10d36743c0c2d594f289be735c.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5d7c0482558ee0a89c0a2f6d935a22.png)
(i)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c419949314258c61e4436e16477fa42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8640aa70c024c467a9e64b8014dc04b9.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a4e7c9bcd3dd106a40041499fb6927.png)
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