名校
1 . 如图1,在
中,
,点
在边
上,连结
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/26c42c0b-ca66-4b9b-942a-2f5b73b9160a.png?resizew=450)
(1)若
,求
的周长;
(2)点
是
上一点,连结
交
于点
.
①如图2,若
平分
,求证:
;
②如图3,连结
过点
作
交
的延长线于点
,且
延长
交
延长线于点
,请直接写出线段
之间的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91518f898132137411d87d32cc0b9d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/26c42c0b-ca66-4b9b-942a-2f5b73b9160a.png?resizew=450)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d350fa137df5ce21dd16877d68ca8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3814287dbb60d478bffc5366f9928b.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
①如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f725b0910e764e2e94a95a5bc16a2f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9b822ae70f84abc0ce705604e918a6.png)
②如图3,连结
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b34cf9e8b8d6d9490dcfafd033fec91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9908d129d3b83f2b4c768c343c83499a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179a84c3835d9e578d608df993e45d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6688c8f08836bf3c67fcd3923fa79d5.png)
您最近一年使用:0次
2 . 已知数列
满足
,
,设
,
(1)求证:
是等比数列;
(2)求数列
的通项公式
.
(3)若不等式
对任意的正整数n恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98c32de5bbc758c9cc96921685418fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a854d2696c51aee466cf69f40e128017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e726e6d2a39e7df97937817391ac309.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc0679fc547c7d65a82cea181cc3982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
3 . 已知数列
满足
,
.
(1)求数列
的通项公式.
(2)若数列
满足
,设数列
前
项和
,求证:
.
![](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/a2104e9de985c40cc295add701ec98f1.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4cecbdebeb5d12fbe1d54b81cc05a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d76c3eb0a07a827877d7a4dc306211.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)求f[f(1)]的值;
(2)若f(x)>1,求x的取值范围;
(3)判断函数在(-2,+∞)上的单调性,并用定义加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b8f9cbc86710cabac3d765c658f84f2.png)
(1)求f[f(1)]的值;
(2)若f(x)>1,求x的取值范围;
(3)判断函数在(-2,+∞)上的单调性,并用定义加以证明.
您最近一年使用:0次
2019-12-07更新
|
479次组卷
|
4卷引用:四川省仁寿第二中学2020-2021学年高一上学期第一次月考数学试题
5 . 已知函数
是定义在R上的奇函数.
(1)求实数a的值;
(2)用定义证明函数
在R上为单调递增函数.若当
时
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190e14b0e4c169c1943b52948bf1cd04.png)
(1)求实数a的值;
(2)用定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2220807eab420bec04772a48b9ab2299.png)
您最近一年使用:0次
6 . 已知奇函数
的定义域为
.
(1)求实数a,b的值;
(2)判断函数
的单调性,并用定义证明;
(3)若实数m满足
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f7806c6ebbf84454a5b7d20e3b53df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c225cab3f0e2edb2cb7b99f0dc2ea3.png)
(1)求实数a,b的值;
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若实数m满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8234aaf7d0089aab17c5e999e35cfd55.png)
您最近一年使用:0次
2019-12-15更新
|
2046次组卷
|
4卷引用:四川省仁寿县第二中学、华兴中学2019-2020学年高一上学期期末模拟数学试题
名校
7 . 已知函数
.
(1)求
的值;
(2)判断函数在
上单调性,并用定义加以证明;
(3)当
取什么值时,
的图像在
轴上方?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b61608d785aa5aab652b78217b1708.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408c3b8df6a492a087def2c879b4e13f.png)
(2)判断函数在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b61608d785aa5aab652b78217b1708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2019-11-07更新
|
1031次组卷
|
7卷引用:四川省眉山市仁寿一中南校区2019-2020学年高一上学期期中数学试题
名校
解题方法
8 . 已知函数
,对任意a,
恒有
,且当
时,有
.
Ⅰ
求
;
Ⅱ
求证:
在R上为增函数;
Ⅲ
若关于x的不等式
对于任意
恒成立,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ab39f22cd2a6081356f2532c1d0095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c62e8677ea5b1613cd4d15dc5ebe0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959f019ced15fee01049607a897aae83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f8ea426c5c889a0486ce554a4a438a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbd0cca5ac040e300930067f5765fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bef5d5f5e55c4ac836ba04284b3c2b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0632d6e3f3462ae16dbff9050f74da.png)
您最近一年使用:0次
2019-01-20更新
|
3670次组卷
|
6卷引用:四川省眉山市东坡区眉山北外附属东坡外国语学校2023-2024学年高一下学期开学考试数学试题
名校
9 . 设函数
是R上的增函数,对任意x,
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853866021cf621b3616b85e4bf4940c7.png)
求
;
求证:
是奇函数;
若
,求实数x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10570c017a8e9ced002591abf78bc2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853866021cf621b3616b85e4bf4940c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a77c4d65f01e583b2f6c5ea97c3e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e16e90ab04e58c5c6f164b401e6539c4.png)
您最近一年使用:0次
2018-12-10更新
|
950次组卷
|
4卷引用:四川省眉山市仁寿县文宫中学2019-2020学年高一上学期期中数学试题
名校
10 . 已知数列
满足
,且
≥![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47b0a1182491f5589d68a6fef5ded8f.png)
(1)求证数列
是等差数列,并求数列
的通项公式;
(2)设
,求数列
的前
项和
.
![](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/f452db793aa9b4305e2047e5d50bd9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47b0a1182491f5589d68a6fef5ded8f.png)
(1)求证数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff2a9e92157a023f7820c03ff2774d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
您最近一年使用:0次
2018-07-05更新
|
906次组卷
|
5卷引用:四川省眉山第一中学2017-2018学年高一下学期期末考试数学试题