解题方法
1 . 已知函数
,其中
.
(1)当
时,若
,求
的值;
(2)证明:
;
(3)若函数
的最大值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40b7076417a2d9a77657020cd3d0d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9920ba41061fb4971be07bda1ddfb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0698b324aad6962f9f50b240cffe48.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3125c342e7fcc6ba0aff633dbaf8d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
2 . 已知函数
(
为常数).
(1)若函数
有3个零点,求实数
的取值范围;
(2)记
,若
与
在
有两个互异的交点
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290b11e6fb6ee46c3ef9e58db1c4fcc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd766591412a3778e801e689022df6d.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6e28dbfcdd6fb66b9ff759be044287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b348ef9ae62245f05324c52dc03e53.png)
您最近一年使用:0次
名校
3 . 已知A,B,C为
的内角.
(1)若
,求
的取值范围;
(2)求证:
;
(3)设
,且
,
,
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd26e94df91ca56fafabbce6c3e577b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6248aecaab8f633a0dd678685c40136b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba934e1fd7be9f9b342066ad0fa442a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31bb945e81369ffe14c348121e2ebbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e5667b41c253fe588e2996d9bea327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffbc737f1cdb7cb3543fe2bb185f793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b4bbc9382cc3da7c840718f66bcdcb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b72439ea2bf7b13e04599d9e4a97b84.png)
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2022-01-28更新
|
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4卷引用:黑龙江省哈尔滨市呼兰区呼兰区第一中学校2021-2022学年高一上学期期末数学试题
黑龙江省哈尔滨市呼兰区呼兰区第一中学校2021-2022学年高一上学期期末数学试题黑龙江省哈尔滨市第三中学校2021-2022学年高一上学期期末数学试题(已下线)模块三 专题4 (三角函数)(拔高能力练)(北师大版)(已下线)第14讲 三角恒等变换、三角函数的应用(7大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
真题
解题方法
4 . 已知数列
满足:
,且
.
(1)求数列
的通项公式;
(2)求证:对于一切正整数n,不等式
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f4e1236d7dc0366d9523d0cbb426be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc571049e2b9b459a10c5e8cb3aba12.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求证:对于一切正整数n,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27dec6145263cd2fb7731bec5e0f5f5.png)
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2021-09-25更新
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3卷引用:2006 年普通高等学校招生考试数学(理)试题(江西卷)
5 . 已知
,
,
为正数,且满足
.
(1)证明:
.
(2)证明:
.
![](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/1a57e060f61f7efa54982bda67db483a.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f188a3ecd0fd051c3f81931f169357c8.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcc1212428c8a875b9896fd6f0b5c25.png)
您最近一年使用:0次
2019-09-19更新
|
1270次组卷
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10卷引用:河北省邢台市2019-2020学年高三上学期第一次摸底考试数学(理科)试题
河北省邢台市2019-2020学年高三上学期第一次摸底考试数学(理科)试题2020年河北省邢台市高三上学期一摸数学(文)试题广东省佛山市顺德区2020届高三上学期统一调研测验(一)数学(文)试题2020届广东省佛山市顺德区高三第一次教学质量检测数学理科试题2020届广东省佛山市顺德区高三第一次教学质量检测数学文科试题江西省宜春市2019-2020学年高三5月模拟考试数学(文)试题四川省乐山市2020届高三第三次调查研究考试数学(理)试题四川省乐山市2020届高三第三次调查研究考试数学(文)试题陕西省榆林市绥德中学2020届高三下学期第五次模拟考试数学(理)试题江西省鹰潭市第一中学2021届高三上学期第三次月考数学(文)试题
名校
6 . 已知函数
.
(1)若
的反函数是
,解方程:
;
(2)设
,是否存在
,使得等式
成立?若存在,求出
的所有取值,如不存在,说明理由;
(3)对于任意
,且
,当
、
、
能作为一个三角形的三边长时,
、
、
也总能作为某个三角形的三边长,试探究
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45afdf4d717bb03adac6b899c367acb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a2a1822ac7392b61b2c0fffc1fbc05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7645ebc4d7f7b397f56b30a5c69cd47.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5eadbf25ad5b776c8faaab4ce0d16aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb25cc2b056b1f1a4aa762be091b199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a63a9cd9caa9b9cada1f8138118c50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4311879d4914afb91646bc4d816c29e3.png)
![](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/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4889b4b46d3cd6dd677d200bdf4914fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de447d5e47448d0f15a7535bf3ce0be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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7 . 选修4-5:不等式选讲
(1)已知实数
满足
,证明:
;
(2)已知
,求证:
-
≥
+
-2.
(1)已知实数
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572510233698304/1572510240079872/STEM/c42133797e144bd798b01c2bcdec893e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572510233698304/1572510240079872/STEM/1a31445d95db400eb1b539cf279a670d.png)
![](https://img.xkw.com/dksih/QBM/2016/3/2/1572510233698304/1572510240079872/STEM/f22e36bb2d2441ae98abb36308569e68.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fccd1ef6cb6e28ae7ddc66b7e7bed1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c70fcaa661df4fbcad820b439accda.png)
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2016-12-04更新
|
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2卷引用:2016届甘肃省天水市一中高三上学期期末理科数学试卷