已知
、
是方程
的两个实根,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94efe6ad45eb25a0ec213dcd82ce0fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88129575adf32d95e2c5c9ed563e3e21.png)
更新时间:2022-10-28 15:11:46
|
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088c41c0eb60ee9cf783c1c1b1b851ec.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8ca9e27fc7502acbc7f7151df07564.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】(1)已知
,求
的值.
(2)已知
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74162be73f207fd855ce17d8e5aa040b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ce7fa549da0a37e3faa1cd50a9c65f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca65d671f250571d8dab75b7f7a3cb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d916d946c56061f3a4b04ecf40682c.png)
您最近一年使用:0次
【推荐1】已知
.
(1)求
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aac17988a9a246e8ba6e33306c0c04c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3090714979dcd554e2457193193f7ffc.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af842f9570082fce8578253d82724534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3836a3e2e5a7fe466c89ca47e66bfbd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
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解答题-计算题
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较易
(0.85)
名校
解题方法
【推荐2】求值∶(1)
;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995931f73b1c5a451341386a08ccdb0b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891ffa3ea2d30061b4e27ddbe30eb612.png)
您最近一年使用:0次