名校
解题方法
1 . 已知函数
,
,若对于任意的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244af58c69c119a21c512a8ea77e4dac.png)
,使得
恒成立,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d286f10c2662c15a7e6b45394d20f56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262077581baf603acf7be972c8afb42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/244af58c69c119a21c512a8ea77e4dac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e8dc00cdc96860c9cbf8ac09677fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)当
时,求证:函数
存在极小值;
(3)求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d02d5fffb7f099c227c60f7e54bdd3.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac9eb4f13a6ec140f7050e8d7dde52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
3 . 已知函数
.
(1)求曲线
过点
的切线方程;
(2)当
时,求证:存在实数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a295a585db4b9e2fbc7128dd0b777bc4.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f391eb1348d7e749caecf0b47ae056.png)
您最近一年使用:0次
4 . 已知
为实数,函数
.
(1)当
时,求曲线
在点
处的切线的方程;
(2)当
时,求函数
的极小值点;
(3)当
时,试判断函数
的零点个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64794310b35b94ffc3e170a856728a30.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf9befc3b336d83b83bcfcbc19c0752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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5 . 函数
(其中
).关于函数
有四个结论:
①
,函数
在
内单调递增;
②
,函数
在
内有最小值;
③
,使得函数
在
内存在两个零点;
④
,使函数
在
内存在2个极值点.
其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3539f1a7c4f7b5f64646af5350ff73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ba6836ab939baf5053dad3d9cfe3785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb2a6a099c8734476ff43de1a8adebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2c9043ff925c1fb693afd1516dbcf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee4eee6c68e48303626cac0982a31615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
其中正确结论的个数是( )
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
6 . 已知函数
,给出下列四个结论:
①当
时,对任意
,
有1个极值点;
②当
时,存在
,使得
存在极值点;
③当
时,对任意
,
有一个零点;
④当
时,存在
,使得
有3个零点.
其中所有正确结论的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105861d1641ea050b3274e1dac21c6fc.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a882037b9ce104ecc496e0f31a139361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c7b17b40ac22797b8d263c4eb19653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fc53d1a6192701c1d7364c08fac090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
其中所有正确结论的序号是
您最近一年使用:0次
名校
7 . 已知函数
,曲线
在点
处切线斜率为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c629b0c7a5005cd81845ad5c20bd0a.png)
(1)求
的值;
(2)求证:
有且只有一个极值点;
(3)求证:方程
无解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f1ed34180f0a387c73cfae8d7bfa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c629b0c7a5005cd81845ad5c20bd0a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bc620ca82923a1abfc2382bfc7dd5c.png)
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名校
8 . 已知函数
,若
有且只有一个零点
,且
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb1139ea380b5ecf51b6874adc96cd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee21db6628e4db3f5831370549fa96b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 设函数
,曲线
在点
处的切线斜率为1.
(1)求
的值;
(2)设函数
,判断函数
的零点的个数;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3277c191ed96a1761d30412786a3f83c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7a75bcd70f6b1a6d02dbb92e964e1b.png)
您最近一年使用:0次
名校
10 . 已知函数
,下列命题中:
①函数有且仅有两个零点;
②函数
在区间
和
内各存在1个极值点;
③函数不存在最小值;
④
,
,使得
;
⑤存在负数
,使得方程
有三个不等的实数根.
其中所有正确结论的序号是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae3a71854471a13314fb3dd416a6ce7.png)
①函数有且仅有两个零点;
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
③函数不存在最小值;
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c674c311004ace15bfb2988bab85f181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc6714e0ec52cfadd0866b764413853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3ecbbaca8eeb1cfa8f4035f7d5726.png)
⑤存在负数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
其中所有正确结论的序号是
您最近一年使用:0次
2024-04-13更新
|
287次组卷
|
2卷引用:北京市顺义牛栏山第一中学2023-2024学年高二下学期4月月考数学试卷