1 . 利用十字相乘法分解因式:
(1)
;
(2)
.
(3)求方程
的解集.
(4)求证:对任意的x,a,b,都有
.
(5)已知“任意l和s,都有
”是真命题,借助这个结论将
进行因式分解.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdf57778bfe4dab4ee539f27ec9758c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96791c33798bd64168fbcfed8227e3d7.png)
(3)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86eb4ca4061cc0763ceb703feebc2b69.png)
(4)求证:对任意的x,a,b,都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22f618009ca40d3c793a14fdbf1b32d.png)
(5)已知“任意l和s,都有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84b242ba1b490d6179e5f68f425bcd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ac4ca64fdb94ebfac63b6d45a453be.png)
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解题方法
2 . 已知定义在
上的函数
,对于
,恒有
.
(1)求证:
是奇函数;
(2)若
是增函数,解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70e0db0174a2c05b28fb6d0c2508778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1cdb84948a62fecaec0e17018ddf08.png)
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2024-01-21更新
|
593次组卷
|
4卷引用:辽宁省丹东市2023-2024学年高一上学期期末教学质量监测数学试题
解题方法
3 . 已知集合
.
(1)求证:
的充要条件是
;
(2)若
是
的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ea30f17181e16a52da2925d19b512d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
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4 . 已知
.
(1)求证:
是关于x的方程
有解的充分不必要条件;
(2)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b183b9a8ddd53a2930f33cf07cb47c.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
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2023高一·全国·专题练习
名校
解题方法
5 . 在集合论中“差集”的定义是:
,且
(1)若
,
,求
;
(2)若
,
,求
;
(3)若
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f4bcaec7926363d8f77c6e773920d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b998f1e3675e0fa3b790c416a751af63.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9e6ad1166c7625e63b80e75b2fb1d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2755a85584173902f146eacf40102723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cb7961d2d6957cfd6b4af403450e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6846ad147da3f53658602eade09631d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7321a9fa7a6ef6be6e40c96709763930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6846ad147da3f53658602eade09631d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe3404ade72e644b48d19572c173c93.png)
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2023高一·全国·专题练习
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解题方法
6 . 已知函数
,
(
).
(1)当
时,解关于x的不等式
;
(2)判断函数
的奇偶性,并证明;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6987701d00f14d9c9cd45cbdb000607b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597ca5bf7e8d0959c1ca65962b6a4200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49341b57eb107f416a014903ce25a8.png)
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解题方法
7 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ab5c4e0e536807a39ed9a85acf0c3.png)
(1)若不等式
的解集为
,求
的值;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2ab5c4e0e536807a39ed9a85acf0c3.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e1cda660d1176d8c93210d038cb0fc.png)
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2023-07-16更新
|
1088次组卷
|
4卷引用:专题02不等式
8 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a503bd44848c1f1af87516fcef73a4.png)
(1)求证
是关于
的方程
有解的一个充分条件;
(2)当
时,求关于
的方程
有一个正根和一个负根的充要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a503bd44848c1f1af87516fcef73a4.png)
(1)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6085a36ddc38b3be7e6fa0e2c5ae596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7add49a49ed66fa00cbb2f73622a6a39.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7add49a49ed66fa00cbb2f73622a6a39.png)
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2023-02-14更新
|
286次组卷
|
4卷引用:四川省资阳市2022-2023学年高二下学期入学检测(上学期期末质量监测)理科数学试题
四川省资阳市2022-2023学年高二下学期入学检测(上学期期末质量监测)理科数学试题四川省资阳市2022-2023学年高二上学期期末文科数学试题(已下线)第03讲 2.3二次函数与一元二次方程、不等式(1)-【帮课堂】四川省资阳市2022-2023学年高二上学期期末理科数学试题
2023高三·全国·专题练习
名校
9 . 首项为正数的数列
满足
.
(1)证明:若
为奇数,则对
,
都是奇数;
(2)若对
,都有
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02a189d0ca15ce60c5b2579424e5624.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12d0bd9afdd4e53ff37f5bfcaa1106c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12d0bd9afdd4e53ff37f5bfcaa1106c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2798e1dcab1f7f0fe3b8a94b3cd6a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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真题
10 . 已知实数p满足不等式
,试判断方程
有无实根,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e12778dd7cb67bcb0804b9bb4e69e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cef1caa5d9f9f05693017d4077fcd0c.png)
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