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1 . 按要求计算:
(1)分解因式:
;
(2)已知
,求
的值;
(3)
;
(4)已知
,求
的值.
(1)分解因式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfdb71089c581d4a65a944f18fcfc40.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ccf1328602bd22b09ca55faa023a3d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ac0218b480ef3eeec90ad04bdffb55f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875e9e322ab55609bf86fbc632175bda.png)
(4)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80236b37de6f299b5ff05d1ff29850c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31f3398b18fc1b3285129af356f48e1.png)
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解题方法
2 . 求值计算:
(1)
,求
的值
(2)
,求
的值
(3)复数z满足
(
为虚数单位),求z
(4)复数z满足:
,且z在复平面内对应的点位于第三象限,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d3b6c316c70ed7a88f9aed6454d5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba20c2fe92bf98bf49b4e44b80919b4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4720fa72e415b389f82a794026559ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680c514271ab4a9c8424873bd5e2b154.png)
(3)复数z满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5661b4d48239c090583080987cfe4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
(4)复数z满足:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207e80766a7e6837927a0f04b0612b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e26e4e9b179160da5ce576e8fbd74e.png)
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3 . 求值:(用数字作答)
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18b1d00d58e78ff4907984e4e527e3.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df18b1d00d58e78ff4907984e4e527e3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef177691b175326802422712c6cc077b.png)
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2023-02-17更新
|
1934次组卷
|
5卷引用:陕西省西安市铁一中学2020-2021学年高二下学期期中理科数学试题
名校
4 . (1)先化简,再求值:
,其中
.
(2)先化简;再求值:当
时;求代数式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efee6c509313fac5387d910b661e5ff1.png)
(3)关于
的代数式
的值与
无关,求
的值.
(4)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb05868da64493f9a2c4dc3871011a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8f878ab71705ccae99bfc9a32c8b8e.png)
(2)先化简;再求值:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad202ed8c2aea4e055f9dc62f581bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efee6c509313fac5387d910b661e5ff1.png)
(3)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f9c5f751a21b4c026144b6f2782e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(4)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe924053218702aa2a43139bf611c2f.png)
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5 . (1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0a84c38ef8849172681a8883ba8fe2.png)
(2)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0a84c38ef8849172681a8883ba8fe2.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204d318d7c40496763ac759c557a05c2.png)
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名校
6 . (1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ff57433f7f606f0329fefefc319b29.png)
(2)先化简,再求值:(x﹣1+
)÷
,其中x的值是从﹣2<x<3的整数值中选取.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ff57433f7f606f0329fefefc319b29.png)
(2)先化简,再求值:(x﹣1+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12bbe93b715841eb6124a3e81f3d007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90f8aad9517f5ecf4656ba67a6d5583.png)
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2021高一·全国·专题练习
7 . 完成下列各题:
(1)化简:
;
(2)求不等式
的解集.
(1)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f215c7d6af5bcb8403bf1bd5e22f0357.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb93f6c25cb374f59b51550c7f5c9f89.png)
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8 . (1)解不等式组:
(2)先化简,再求值:(
-
)÷
,其中x=
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731bc155992954c7899fb0669576e594.png)
(2)先化简,再求值:(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b60b122e651b49f676e07bd8c815006f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a76241e782e13eeee7c187507778aecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b05e238548dc202137a63d8b20ff277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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21-22高一上·全国·课前预习
解题方法
9 . 求值域(用区间表示):
(1)
,①
;②
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ce71f8ee506de7f71c4b345d532dedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/503d20a189624b4f27ae2e7e273ec8c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f851f9849dfe2c3306d20d06f712069d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c62d52fea1d1d8851d832fac02901e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8816e30d0e2e245569bd59e0aa6d9b.png)
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21-22高一·全国·课后作业
解题方法
10 . 已知
在定义域上是奇函数,且在
(
)上是减函数,图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/59818f33-f49c-4cd3-96b9-84847081c3ff.png?resizew=154)
(1)化简:
;
(2)画出函数
在
上的图象;
(3)证明:
在
上是减函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/59818f33-f49c-4cd3-96b9-84847081c3ff.png?resizew=154)
(1)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11a1a82cc1848d7b859ccf3c5497605.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35d36ae1b7e62350f90a443a72574ac.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35d36ae1b7e62350f90a443a72574ac.png)
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