1 . 我们知道,函数
与
互为反函数.一般地,设A,B分别为函数
的定义域和值域,如果由函数
可解得唯一
也是一个函数(即对任意一个
,都有唯一的
与之对应),那么就称函数
是函数
的反函数,记作
.在
中,y是自变量,x是y的函数.习惯上改写成
的形式.反函数具有多种性质,如:①如果
是
的反函数,那么
也是
的反函数;②互为反函数的两个函数的图象关于直线
对称;③一个函数与它的反函数在相应区间上的单调性是一致的.
(1)已知函数
的图象在点
处的切线倾斜角为60°,求其反函数
的图象在
时的切线方程;
(2)若函数
,试求其反函数
并判断单调性;
(3)在(2)的条件下,证明:当
时,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda90af8ba1d6f9e21a49e96b709f16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7edf0a72070071cbbcd54c9e2f5ce1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ae23cf6a2823451f9676220b32c782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7edf0a72070071cbbcd54c9e2f5ce1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fe53f7586f7cfbc17e2fd1c1a091bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fe53f7586f7cfbc17e2fd1c1a091bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a4f23baf90cbc32cba9f6b9bfea2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
(1)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83104d98d6920b19fe2cc3cf097bce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
(3)在(2)的条件下,证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65cc52aacc31a21a443c8de0374b24f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f8c8e4cfd60c1793cfa4526d1fc853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897453f27022194d1f57e8b54960111f.png)
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解题方法
2 . 已知函数
与函数
的图像关于直线
对称,
(1)在数列
中,
,当
时,
,在数列
中,
,
,若点
在函数
的图像上,求a的值.
(2)在(1)的条件下,过点
作倾斜角为
的直线
,若
在y轴上的截距为
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dbacbb9d0cbda8c1ddc77f21c6802af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
(1)在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99a06eeb57618092aa67dc89fb7b721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385275d29d8c8a7841eaeaa3dfab2cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac96b09d3eccdb9a4c17ecbdec9ecebf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068ba888e3d5c45cbfc8685a8e0a3fbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在(1)的条件下,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/472b741decf560d5f67801f1788b9768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2021-09-25更新
|
268次组卷
|
2卷引用:高中数学解题兵法 第七十七讲 数学归纳法
解题方法
3 . 已知函数
.
(1)求
的定义域和值域;
(2)求
的单调区间;
(3)设
的反函数为
,解关于x的方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b8a6435d7c94b7079a25c7c3a088c2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)设
![](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/ed04763cd4826cafd3c141b8eb1b10a7.png)
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名校
4 . 已知函数
的反函数是
,设
,
,
是
图象上不同的三点;
(1)求
;
(2)如果存在正实数
,使得
,
,
成等差数列,试用
表示实数
;
(3)在(2)的条件下,如果实数
是唯一的,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a709d20f9a223b729dbc4426fe0b774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1d5df667d012582393a4169f98c843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22aa2dcf2712ddc1069f7e234056da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd091bc66c6d44fcab489c2688f95b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135bcf6d7f7c04641823b90f1d038eee.png)
(2)如果存在正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9314bd1d7a6e070f4f2428f9a321804e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,如果实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知函数
.
(1)设
是
的反函数.当
时,解不等式
;
(2)若关于
的方程
的解集中恰好有一个元素,求实数
的值;
(3)设
,若对任意
,函数
在区间
上的最大值与最小值的差不超过
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e4900f308f9aba73d06964d8e61f54.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab05c7c140f76ce8618a6694b57b30e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bd20834857c93040879c02070035b6.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b542881ccda4af9d4cbc1df4ead2638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb848c2e3353bcb126d14fed803fe2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaca9c1dac608a386df1848e8459ce9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e24d42f61784c642e9eb1316afdd2ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-01更新
|
270次组卷
|
2卷引用:上海市杨浦区2018届高三上学期期中数学试题
6 . 已知函数
满足
,且
,
分别是定义在
上的偶函数和奇函数.
(1)求函数
的反函数;
(2)已知
,若函数
在
上满足
,求实数a的取值范围;
(3)若对于任意
不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebac1228bae0339a547382daf6e2fa30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b148ebfd8746a83018c9bfd0314eb938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c5f76571ea959939a31465700aeb33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2775ffdf695af2d263f0ea93ac5904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6738fb2273ec85a54041f45e38d82dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9caee915f87edf5e5914b01a7a28c2dc.png)
(3)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2348b6177af6af8d4f724f93e7425a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cac0c31e58bb778421243705cd03da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-01-13更新
|
335次组卷
|
2卷引用:2017年上海市八校联考高考模拟数学试题
7 . 已知函数
.
(1)若函数
是函数
的反函数,解方程
;
(2)当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c987e4096540d6852bdf92f9f9a551f6.png)
时,定义
,设
,数列
的前n项和为
,求
及
;
(3)对于任意
,其中
,当
能作为一个三角形的三边长时,
也总能作为一个三角形的三边长,试探究M的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45afdf4d717bb03adac6b899c367acb.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50fede489df9138badffe39d4dd6755b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155ecc3f52ea55b0172cecd80cc28d50.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c987e4096540d6852bdf92f9f9a551f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7e785d0978581dd9bb152c968395ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9f28a83709e0cab563637fa5e46810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/504616a3feb068f34f44bbc6f64ab8cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6b5790aa84bcd1a60d263a21e137e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e5e69a1736fce183c0227c991c14810.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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b4db74fcf367ea0cd1e6ff95fed441.png)
您最近一年使用:0次
名校
8 . 已知函数
,其中
为常数.
(1)当
时,解不等式
;
(2)已知
是以2为周期的偶函数,且当
时,有
.若
,且
,求函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
的反函数;
(3)若在
上存在
个不同的点
,
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db58afeac1cfe83233a8887e16f59b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940adbf54e96ecb2bb2637e5f976a3b0.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d1a94ea3c278c2197572cc1b7725b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73403af0e659b0d37e0f0b6edf269eb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c76e839b5cdae2d2a269fae6f0cecad.png)
(3)若在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20b0fbf898ae18f2efdea8be286747b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a67c640d93f2c77e1b1c37bffbee68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd8aca43265bd67a26d37ea1a44665e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-01-02更新
|
955次组卷
|
10卷引用:上海市嘉定区、长宁、金山区2019-2020学年高三上学期期末数学试题
上海市嘉定区、长宁、金山区2019-2020学年高三上学期期末数学试题2020届上海市长宁嘉定金山高三一模数学试题2020届上海市嘉定区高三一模数学试题(已下线)热点02 函数及其性质-2021年高考数学【热点·重点·难点】专练(上海专用)上海市控江中学2022届高三上学期开学考数学试题上海市杨浦区控江中学2022届高三上学期第一次月考(9月)数学试题上海市浦东复旦附中分校2022届高三上学期10月月考数学试题(已下线)期末复习【过关测试】-2020-2021学年高一数学单元复习(沪教版2020必修第一册)(已下线)期末复习【真题训练】-2020-2021学年高一数学单元复习(沪教版2020必修第一册)湖南省娄底市新化县五校联盟2022-2023学年高一上学期期末联考数学试题
名校
9 . 已知函数
.
(1)若
,求
的值;
(2)设
,当
时,
的值域为
,试求
与
的值;
(3)当
时,记
,如果对于区间
上的任意三个实数
、
、
,都存在以
、
、
为边长的三角形,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e6291515065417371f82a7044d079d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab54ab289fc99ed947d53d3306eb9309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02700361b31987e710719ed88a395972.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bff6e4783589606ab581deb35aec932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c5d7449d0220d1c90eccbfc2550478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d8ac5d62795f1f6ccde77ec98bb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829fddb75e088131a5053ff0e783acf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74aa231cf7b975f8b799dca9c10f16d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0225bca34eaf19544939b29153aac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
10 . 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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