1 . 若关于
的方程
与
的解互为倒数,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972c46b41c53f55613b0d563a9e85323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb82aea902bd0220fa25a8d05a2965d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 已知
,
.
(1)若
的值与
的值相等,求
的值;
(2)当
取何值时,
比
大3?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558b5008ac16fd96922f1bc2bd92bac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2cbc9d6ee6653e22d915ccc57684d92.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
您最近一年使用:0次
3 . 解方程(组):
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ca9ed2f18237fa23a00cf3b9ab3e27.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ca9ed2f18237fa23a00cf3b9ab3e27.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c686d0d19f1b89db04d215430d5cc48.png)
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4 . 已知
是关于x的方程
的解,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64852912fc98cd9a9517a07937a121b.png)
A.![]() | B.2 | C.![]() | D.10 |
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5 . 解下列方程
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08e71d95caf4760272ae6cafd2df71b.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08e71d95caf4760272ae6cafd2df71b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9137d74c75c1d2673dfd74ac908a121.png)
您最近一年使用:0次
6 . 若方程
是关于x的一元一次方程,则k的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6614c888b0c85e3a1b47de691f9663a0.png)
A.0 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-10更新
|
99次组卷
|
2卷引用:河南省许昌市禹州市2023-2024学年七年级上学期期末数学试题
7 . 已知
是二元一次方程
的解,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e131aba1d144b19ed4d25a9c49da34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9c7fe0d4a522f8b0b22be65c16f408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.2 | C.![]() | D.![]() |
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8 . 定义新运算“
”,规定
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ef8e66a05484dea14593e2fba360f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c476e0daff3347a867ca2e120d9cda2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
9 . 历史上的数学巨人欧拉最先把关于x的多项式用记号
来表示.例如
,把x等于某数时多项式的值用f(某数)来表示.例如
时多项式
的值记为
.
(1)已知
,求出
的值;
(2)已知
,
,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58cbded0c91457fdf2ef7fd1e7db1ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acefdacd5c80d7bd7a515422b3ee6ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3579b53519f30b8527b1e9492120e7df.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b82287f838244a5ac7f3db2f0312ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707e480de114938ef58d3868cbdf82d1.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca225e528036d0f815bb0c3f7ef60fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b5c28b9e7d19e322046b310effa31a.png)
您最近一年使用:0次
10 . 已知
.求:
(1)当
取何值时,
;
(2)当
取何值时,A比
大3.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53bbd06a960e159f6b2f9d88c463c7d9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2024-04-07更新
|
63次组卷
|
2卷引用:河南省鹤壁市2023-2024学年七年级下学期月考数学试题