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解题方法
1 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c639f6d1fc2d50e8b4642678e04d8866.png)
(1)当
,
恒成立,求实数
的取值范围.
(2)设
在
上有两个极值点
.
(A)求实数
的取值范围;
(B)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c639f6d1fc2d50e8b4642678e04d8866.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f729281c243ec3643f5a9492d24e24ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf613d5ed2a4b75ee70638f28fd9f44f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
(A)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(B)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d26614b03044272c0dbd8cf736c75e.png)
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2017-12-07更新
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3卷引用:辽宁省鞍山市第一中学2018届高三上学期第二次模拟考试(期中)数学(理)试题
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2 . 设
,
.
(1)令
,求
的单调区间;
(2)当
时,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075aee6ef1871beb7012875e9ab98c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da063390ec587b6aa72b0a10162c8c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
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2017-11-20更新
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5卷引用:辽宁省鞍山市第一中学2017届高三下学期最后一次模拟考试数学(文)试题
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3 . 设函数f(x)=(2-x)e.x
(1)求f(x)在x=0处的切线;
(2)当x≥0时,f(x)≤ax+2,求a的取值范围.
(1)求f(x)在x=0处的切线;
(2)当x≥0时,f(x)≤ax+2,求a的取值范围.
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2017-10-16更新
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4卷引用:辽宁省鞍山市第一中学2018届高三上学期第一次模拟考试数学(文)试题1
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4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7339bea1bff0cb7f236f5891e30fad.png)
(1)当
时,求函数
在
处的切线方程;
(2)令
求函数
的极值.
(3)若
,正实数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7339bea1bff0cb7f236f5891e30fad.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc96b41d90ed97aa7dd11eb4cb4a336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edc9a8dca8cf050887b4915bfc962f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6330de640d51bb3970813289a4de3a5d.png)
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2017-06-29更新
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6卷引用:2017届辽宁省鞍山市高三下学期第一次质量检测数学(文)试卷
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5 . 已知
.
(1)证明
在
上为增函数;
(2)当
时,解不等式
;
(3)若
在
上恒成立,求
的最大整数值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f17ee9e2efc401d1626c839bd0a20da.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a19bbab2270fc8e694527e801556cf.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a7997040dff76af0c959062c298c27.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a676a8b4055c7cb757153c95f67e7440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 已知函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
在
处的切线与直线
垂直,求
的值;
(2)讨论函数
极值点的个数,并说明理由;
(3)若
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdc92f355bdfd8abda8c354f2032333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
7 . 已知函数
,
,(
为自然对数的底数).
(1)若不等式
对于一切
恒成立,求a的最小值;
(2)若对任意的
,在
上总存在两个不同的![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
,使
成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba790bfc7240d9f86fea1f9367a4cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ade1f23caf19960aa209bf443e9632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0900642509853376f5100dfe6baff871.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e2e7d16b98db0a84713456623c456d.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b207855ac1e23e451a5ddddb2026992c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ec44e16c942d84044f6fb4d1ec9266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687ec4e10bc3c8bd4c18b9950dda944e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31296474ad150954afd21b32d71d81c4.png)
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2016-12-04更新
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4卷引用:2016届辽宁省鞍山一中高三上学期12月考二模文科数学试卷