1 . 已知函数
.
(1)求曲线
经过点
的切线的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3800798f1fa07f3861be05df7a2168e8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2180e18416d40abb243bd23984e7aba.png)
您最近一年使用:0次
名校
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b1c0d5f732ab88f2ce487ee3285841.png)
(1)若
在
上恒成立,求a的取值范围;
(2)设
为函数g(x)的两个零点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b1c0d5f732ab88f2ce487ee3285841.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a20570016dcade92a03583ca7a74a8.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e6c1acba8e11c3f6474b1a998648451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c397fb14b6ebba2c4a47f96314b8334.png)
您最近一年使用:0次
2023-10-31更新
|
350次组卷
|
10卷引用:陕西省榆林市米脂中学2024届高三上学期第六次模拟考试数学(理)试题
陕西省榆林市米脂中学2024届高三上学期第六次模拟考试数学(理)试题陕西省榆林市府谷县第一中学2023-2024学年高三上学期第一次联考理科数学试题全国名校大联考2023-2024学年高三上学期第一联考(月考)数学试题河北省保定市唐县第一中学2024届高三上学期9月月考数学试题(已下线)考点19 导数的应用--函数零点问题 2024届高考数学考点总动员【练】贵州省2024届高三上学期第一次联考(月考)数学试题吉林省通榆县第一中学校2024届高三上学期第二次质量检测数学试题新疆乌鲁木齐市第七十中学2024届高三上学期第一次联考(月考)数学试题贵州省黔西南州兴义市顶效开发区顶兴学校2023-2024学年高三上学期第二次月考数学试题四川省2024届高三上学期第一次联考(月考)理科数学试题
解题方法
3 . 已知直线
,M为平面内一动点,过M作l的垂线,垂足为N,且
(O为坐标原点),动点M的轨迹记为
.
(1)证明
为抛物线,并指出它的焦点坐标.
(2)已知
,直线
与
交于A,B两点,直线
,
与
的另一交点分别是C,D,证明:
∥
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a520beb0ae215a01f9de68d10d44d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2abe13e2d4176f55f71677bbbb6eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b4af4a7e91f9f0efd6142ff3e2a89.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b4af4a7e91f9f0efd6142ff3e2a89.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8997bc5c6b72da48ef1af2a8acd2397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b4af4a7e91f9f0efd6142ff3e2a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b4af4a7e91f9f0efd6142ff3e2a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
4 . 已知函数
.
(1)设
,求
的单调区间;
(2)求证:存在恰有2个切点的曲线
的切线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083983e59e7b63f08b6c3a49e9e506ca.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5be3af0c67a20bee47063487d305f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)求证:存在恰有2个切点的曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
2021-01-21更新
|
605次组卷
|
6卷引用:陕西省榆林市2020-2021学年高三上学期一模理科数学试题
陕西省榆林市2020-2021学年高三上学期一模理科数学试题陕西省西安市陕西师范大学附属中学渭北中学2023届高三三模理科数学试题(已下线)专题28 导数及其应用(解答题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题26 导数及其应用(解答题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题28 导数及其应用(解答题)-2021年高考数学(理)二轮复习热点题型精选精练陕西省西安市长安区第一中学2023-2024学年高三上学期第三次教学质量检测(期中)数学(理)试题
名校
5 . 设函数
(
)的最小值为
.
(1)求
的值;
(2)若
,
,
为正实数,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57530a487367697c920f4bb2df591599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](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/861ec3a6c3c6fd17393f625d32940dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80656b731580035f2d5f137a0a97cbb7.png)
您最近一年使用:0次
2020-03-28更新
|
883次组卷
|
9卷引用:2020届陕西省榆林市高三第二次模拟考试文科数学试题
名校
解题方法
6 . 已知函数
,其中常数
.
(1)若
,令
,求
的单调递增区间;
(2)当
时,不等式
恒成立,求实数
的取值范围;
(3)若
,且
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0fa4137b76d72ae83f9358c4b2aa74a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b916c6d3fb2fdc67421489f207c93903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08513768531f0c9352ba8581a5523c83.png)
您最近一年使用:0次
2020-07-22更新
|
193次组卷
|
2卷引用:陕西省榆林市神木中学2021届高三三模文科数学试题
解题方法
7 . 已知
.
(1)解不等式
;
(2)若
、
、
均为正数,且
,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feaa7659d62afd0d2b7d5ae7e5c300a7.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bfa8fb148ee435d66a1b24618c56f9.png)
(2)若
![](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/d848eb64686508f68f5f61bc087b5592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfdb47e8cea8f2d4ed8ba3f5b924f01.png)
您最近一年使用:0次
2020-07-24更新
|
585次组卷
|
4卷引用:陕西省榆林市2020届高三下学期第四次高考模拟数学(文)试题
名校
解题方法
8 . 已知函数
的图象在
处的切线为
.(
为自然对数的底数).
(1)求
,
的值;
(2)当
时,求证:
;
(3)若
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fbe1604538f63fb12e452ad44e20648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d4f20f4d98141613ff5dd7c37b55c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/457ab5b47bdaea692f22080dd97fb34c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8800c695cb799480fe1eb3859868e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-04-03更新
|
269次组卷
|
2卷引用:2017届陕西省榆林市高三第二次模拟测试数学(文)试题
9 . 已知函数
,其中
.
(1)讨论函数
的零点个数;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ca79c133d3ed69b748f22369887fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8659865afe33525603298dfca5dce0.png)
您最近一年使用:0次
名校
10 . 已知O为坐标原点,
,
,直线AG,BG相交于点G,且它们的斜率之积为
.记点G的轨迹为曲线C.
(1)若射线
与曲线C交于点D,且E为曲线C的最高点,证明:
.
(2)直线
与曲线C交于M,N两点,直线AM,AN与y轴分别交于P,Q两点.试问在x轴上是否存在定点T,使得以PQ为直径的圆恒过点T?若存在,求出T的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
(1)若射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324ea5e0df953d5f200bd654f2b724f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14f4edc0f4f1860043605d8eb958921.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f5009709cb959ee06ac660f6e4f88f.png)
您最近一年使用:0次
2020-05-04更新
|
678次组卷
|
4卷引用:2020届陕西省榆林市高三第二次模拟考试文科数学试题