1 . 定义运算:
,函数
的最小正周期为
.
(1)求
的值;
(2)求
的单调递减区间;
(3)将函数
的图像向左平移
个单位长度,再向下平移
个单位长度后得到函数
的图像,证明;存在无穷多个整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fec025453bac0d34d5e9bdf61a6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b0478fdcdadb1a74f329734ed2bd7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ddf2ae04265e2cbf674ab40bba45c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a8deebf5815d7f96370e32365ddf21.png)
您最近一年使用:0次
名校
2 . 已知
.
(1)若对任意
,
恒成立,求实数
的最小值;
(2)若
,且
,
为任意角,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad814089e37543b2f547af9ae75b6dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11847bf05c2cda2c226c7fc5f6b4bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b1ec158439b8c797514d254b7944c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025626310f5e5690c28e29808d7afeef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afb1e9d3d364131fdf0c70c9badd38a.png)
您最近一年使用:0次
2021-11-12更新
|
66次组卷
|
2卷引用:广西师范大学附属外国语学院2021-2022学年高二上学期期中数学(理)试题
解题方法
3 . 如图所示,在四边形
中,
,
,
,
,
,点
为四边形
的外接圆劣弧
(不含端点
,
)上一动点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/77dc3669-b556-4f5a-bfd4-5d7e44723f9e.png?resizew=142)
(Ⅰ)判断
的形状,并证明;
(Ⅱ)若
,设
,
,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954d2fd2aecd31ff67d975bc8981023a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f028b10ae7e2a83316c077cdccd6ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc2f5f6d9efe3852a2329ea927abcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/77dc3669-b556-4f5a-bfd4-5d7e44723f9e.png?resizew=142)
(Ⅰ)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272c5e2a28daff5a36abd64267fcaa5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9ab5a9114daaa0fd3f6c5f1885f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038bd8c95ff3649e957b67036207fbe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
您最近一年使用:0次
解题方法
4 . 设
的内角
、
、
的对边分别是
,
,
,
,且
为钝角.
(1)证明:
;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c7547e9ba4cc2787d8f9d59ecf1eb202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd2d90ed8b5f265bb5b0a8c84b4b743.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d218a405fae9905116d6587cb9396b.png)
您最近一年使用:0次
解题方法
5 . 已知
三个内角
、
、
的对边分别为
、
、
.
(1)若
、
为锐角三角形的两个内角,求证
;
(2)若
、
、
的倒数成等差数列,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b48895daa87c296d961bfd0d4fd386.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/dc74ad5dbb6029f4bd4ea0d52f576945.png)
您最近一年使用:0次
20-21高一·浙江·期末
解题方法
6 . 已知
为奇函数.
(1)求实数
的值;
(2)判断并用定义法证明函数
的单调性;
(3)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4c93934ce43b89d78c701c8aaf69b0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断并用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07aa493fb64f43e16e86ac81434334b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
7 . 设
,函数
的图像是由函数
的图像经如下变换得到:先将
图像上所有点的纵坐标伸长到原来的
倍(横坐标不变),再将所得到的图像向右平移
个单位长度.
(1)求函数
的解析式,并求其图像的对称轴方程;
(2)已知关于
的方程
在
内有两个不同的解
、
,
①求实数
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e663a09cdcde628b5633a6ab07dd55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0112b805a6f654552c73faa57563ac8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24192cace1d2a643fc3a42a5b7ac273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e228c185ab887fbbc46b4e06cb13e1.png)
您最近一年使用:0次
8 . 已知函数
.
(1)求函数
的定义域;
(2)求曲线
在点
处的切线方程;
(3)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554abe4a9038c2113c0401e4654c570b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6faa9259567d80f5da69a5fc09e71658.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031ed5002755bcdd53c26fd7ff27fa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
您最近一年使用:0次
2020-06-15更新
|
680次组卷
|
3卷引用:山西省运城市2022届高三上学期期中数学(理)试题
解题方法
9 . 如图所示,在四边形
中:
,
,
,
,
.点
为四边形
的外接圆劣弧
(不含
)上一动点.
![](https://img.xkw.com/dksih/QBM/2020/5/26/2471077470535680/2471514501242880/STEM/8019ea7749bd471796700747fc8721e2.png?resizew=171)
(1)证明:
;
(2)若
,设
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e774dfd32305229cf4e06b36eecc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b40d0d2f3cdd8981bb792ad87efb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed3bd00fd01845270e397d7b4d1cdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b04db1293cb963142a7d039cf8332d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4aa43d2e64e857267e706e1f50f5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://img.xkw.com/dksih/QBM/2020/5/26/2471077470535680/2471514501242880/STEM/8019ea7749bd471796700747fc8721e2.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1264d0e43c0c55084b4274c978816d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9ab5a9114daaa0fd3f6c5f1885f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa1739e23c00ffcbed7b8c157fd1174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
您最近一年使用:0次
名校
10 . 已知角
的终边上一点
,
.
(1)请用定义证明:
;
(2)已知函数
在区间
的最大值
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0527f3801a1f5fae326d9411555b7d.png)
(1)请用定义证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1ec2d7289bc848c59d03ef876073d6.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c48512814068f0781df94dabd78a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea7e406afac9609ca4015d25066af1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次