1 . 等差数列
中,公差
,则方程组
的解的情况是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0aefe8298a5bd01bdc8ed3c51162b0.png)
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2 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42b4311e60e795f0c16f84e7782d445.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42b4311e60e795f0c16f84e7782d445.png)
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3 . 在
中,
,
,
分别是角
,
,
的对边,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b095456c867a622bd544b6b69aa5cdc5.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b095456c867a622bd544b6b69aa5cdc5.png)
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4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a9da5ddc5c1d403d7f69a4140ce4db.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a9da5ddc5c1d403d7f69a4140ce4db.png)
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5 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fd76771b9d7b0b361cee8846080c24.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fd76771b9d7b0b361cee8846080c24.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6f75728938f7b176c9cf5a81a5dc05.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac6f75728938f7b176c9cf5a81a5dc05.png)
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7 . 计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aaf9c66d5df7688ac56a64147be76cb.png)
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8 . 方程组
有无穷多解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bd1807f72e084049651e859c489ea5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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9 . 解关于
,
的方程组
.
![](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/e8d6a2f7c9d7e649f6c97c2ba85d54c3.png)
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10 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afd1a08a4abe7a7c38fd4fdba92fba8.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afd1a08a4abe7a7c38fd4fdba92fba8.png)
您最近一年使用:0次