(1)求值:
;
(2)已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30730c477a33e12580c538d72a6038.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76db128414d6149d86ee6b2fc4438af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c27ff0098dd1edc37bc6ea2215049f.png)
2023·吉林长春·模拟预测 查看更多[2]
更新时间:2023-09-24 15:36:04
|