1 . 回答下列各题:
(1)计算:
.
(2)求不等式组
的解.
(3)先化简,再求值
,其中x的值是方程
的根.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d37748a847ea07f86e9d8987fc41b0.png)
(2)求不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e43d080c3647643a56a853d0e4685d6.png)
(3)先化简,再求值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668ff378ae340df95a355acaf5806bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8034dddd265a186e29172623e3b9eadf.png)
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2 . (1)解不等式组:
,并把解集在数轴上表示出来;
(2)先化简,再求值:已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4348a5183fcf3686773969d85c3921.png)
(2)先化简,再求值:已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc12fed7a6f4777c0fccc896e624281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde4df5d30068f1efab9f40c2f24b623.png)
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3 . (1)计算:
.
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fbc17b6131a1d704a6850b86a13e0e.png)
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a8ce1e2d86cc4b582e819782976936.png)
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4 . (1)计算:
;
(2)解不等式组:
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53295ce58f5d18af28bb31b874feec2.png)
(2)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983a1692ea916cc096a607b244770f1.png)
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名校
5 . 已知关于
,
的方程组
其中
.
(1)当
时,求该方程组的解;
(2)证明:无论
为何值,该方程组总有两组不同的解;
(3)记该方程组的两组不同的解分别为
和
,判断
是否为定值.若为定值,请求出该值;若不是定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1685feba617e3d56860fe0a3a59804f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
(2)证明:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)记该方程组的两组不同的解分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3396ead2a01ebd1d6134732541008a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a03b0e1c4de970668548ebb944fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0af05cf4260c845bfb0675073bd81b6.png)
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2023-11-14更新
|
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2卷引用:四川省雅安市名山中学2023-2024学年高一上学期12月月考数学试题
6 . 化简求值(需要写出计算过程).
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16316b1c059b8b4c4bd16b987642a71f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e67df60944766e9fefb48e14e90043.png)
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2023-01-06更新
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3卷引用:四川省成都市郫都区第四中学2023-2024学年高一上学期12月月考数学试题
7 . 化简求值(需要写出计算过程)
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa4a17abe9d61d8b18e5100c67f0898.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a2f778bc7b21e258a5c071fa84165a.png)
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8 . 化简求值(需要写出计算过程).
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ef7db884d7ec920d17b35e9b425903.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05655488950cfb4edf8bcbd20d41aedd.png)
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9 . 已知
,函数
.
(1)当
时,解不等式
;
(2)若关于
的方程
的解集中恰有两个元素,求
的取值范围;
(3)设
,若对任意的
,函数
在区间
上的最大值与最小值的和不大于2,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b2712debcab48c4170c72794d8c471.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2aeda5c6f101566159dd4c460b943b2.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e9db9750a44fcef925672cf654dbec.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/a242d77106235f060b3221b3ea32d486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82dca4a0e082b5cbdb1beb6f4d1e2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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10 . 给出下列说法,其中不正确的是( )
A.集合![]() ![]() |
B.实数集可以表示为![]() ![]() |
C.方程组![]() ![]() |
D.集合![]() ![]() |
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2023-11-27更新
|
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