解题方法
1 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d7258de3ea69c206cd1425a8caf1b6.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab54919364223651ffd647361dd2da41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d7258de3ea69c206cd1425a8caf1b6.png)
您最近一年使用:0次
2 . (1)求值:
;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b6619bfaf39d99e64326417b124e8d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af2c80754d283c18cdeb42b2e3e1cf8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f41c0524e6eacd9b1f1e5c628a65d7.png)
您最近一年使用:0次
2020-12-03更新
|
572次组卷
|
2卷引用:山西省吕梁市2021届高三上学期期中文科数学试题
3 . 已知
.
(1)求
的值;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54a57b41b3fa4ecdbd340a07fec689e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94882eaa7cc0166cbf3c68cb2e52e595.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf1bb8330b509bbc9cffa58f76d9ca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d58d3b03fee3f0a6929bcbb019f6601.png)
您最近一年使用:0次
2016-12-04更新
|
1392次组卷
|
2卷引用:2015-2016学年山西大学附属中学高一下期中数学试卷