解题方法
1 . 已知函数
.
(1)当
时,试判断函数
的单调性;
(2)若
,求证:函数
在
上的最小值小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b06b73ff85740df5182eb0b95f2f332.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf282473b0b3ccb3b4f3ad60671ab09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e22abfa382c3961307d03067807258d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ff16773bd63036c8c881d8417ab555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cfa1e7ffae662aefb49a44c52d4954d.png)
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2018-04-03更新
|
529次组卷
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2卷引用:甘肃省天水市第一中学2017-2018学年度下学期高三第二次模拟 考试 数学(理科)试题
13-14高二·江西宜春·阶段练习
名校
2 . 已知函数
.
(1)讨论函数
的单调性;
(2)若函数
在
处取得极值,不等式
对
恒成立,求实数
的取值范围;
(3)当
时,证明不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff615387db7c9645acc1a82f8dd428a.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71944acb81a6e3e219f6f6f748ee3f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4db634159e02e30a5996f4296ceb91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246400d13391f177bde3d4b923146fe4.png)
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2016-12-03更新
|
683次组卷
|
3卷引用:甘肃省天水市第一中学2019届高三下学期第三次模拟考试数学(理)试题
甘肃省天水市第一中学2019届高三下学期第三次模拟考试数学(理)试题(已下线)2013-2014学年江西宜春上高二中高二第六次月考理数学卷【校级联考】湖北省宜昌市(宜都二中、东湖高中)2019届高三12月联考数学(理)试题
12-13高二上·甘肃天水·期末
3 . 已知函数
,(
),常数
.
(1)试确定函数
的单调区间;
(2)若对于任意
恒成立,试确定实数
的取值范围;
(3)设函数
,求证:
(
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dfa6354d227f69ad3eb470d7c4f6e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
(1)试确定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b52cea78b467b5f7aad62f034c4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bfc2f1af386882ce8ff95da2b4ec802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f5867345de617d6739d3c94830b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec075403b4e6b5e385ee93b4703fab2.png)
您最近一年使用:0次
名校
解题方法
4 . 已知函数
.
(1)若函数
在
处取得极值,求a的值;
(2)若函数
的图象在直线
图象的下方,求a的取值范围;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42669ea60835e6c9307559aaa3692781.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460f6f3514a147f356985781625e1c96.png)
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5 . 已知函数
,其中
为自然对数的底数.
(1)证明:当
时,①
,②
;
(2)证明:对任意
,
,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06a26231e56876141311f71bc8e1ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6122e9693713e9a1baa8cf5d9fed3440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1f201b20d1aee8f2464e2d845dfd00.png)
(2)证明:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e12b644318c5c276a086a82982b8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef2f469f074077cc39de10407034aa6.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)若
,讨论
的单调性;
(2)若
,证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56eb507c7a3b7436db38de1a712527f9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47afc2af1da24b4b078ecc1b5acbb159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c057b92aab8cfdefbf922abd76e2a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfdf4951b306a0881da4f50f98868dcf.png)
您最近一年使用:0次
2017-05-18更新
|
1200次组卷
|
2卷引用:甘肃省高台县第一中学2018届高三上学期第五次模拟(12月)数学(文)试题
名校
7 . 已知函数
(
).
(1)若
,求函数
的极值.
(2)若
在
有唯一的零点
,求
的取值范围.
(3)若
,设
,求证:
在
内有唯一的零点
,且对(2)中的
,满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a498b12061b310005404b16a2331c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f972a7a1d05b45cffb5a291f0863c7e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60c1e3f74e6701b80b370a7bc079120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b56230b1dafcad796ad882786afc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3c56049b7424e75a3238749c6edd3e.png)
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2017-08-21更新
|
471次组卷
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2卷引用:甘肃省民乐县第一中学2021-2022学年高三上学期10月诊断考试数学(理)试题
名校
8 . 设函数
,
.
(1)讨论函数
的单调性;
(2)若函数
有两个极值点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8df7d8c10fd11469e6763cd7c065dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee70128768a1aaba2a2c11bf3458c294.png)
您最近一年使用:0次
名校
9 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d475c8181b61dd66e8c0d670bb5443c4.png)
(1)讨论函数
的单调性;
(2)若
有两个不相等的实数根
,求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d475c8181b61dd66e8c0d670bb5443c4.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5809a06357f94fc7a2156c7e7af1ed2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4abb329e11745fdd0caba1b7970d47.png)
您最近一年使用:0次
解题方法
10 . 已知函数
在
上是增函数,且
.
(1)求
的取值范围;
(2)若
,试证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa9add2e7429c21759e30ddffc81597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c2b2ca0f577d3181b501cb3aad9ca0.png)
您最近一年使用:0次
2017-03-21更新
|
719次组卷
|
2卷引用:2017届甘肃省兰州市高三第一次诊断性考试数学(理)试卷