1 . 已知
,
而且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e36047abddb41d610eee6b85c828f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c63449124223980083da5af1386c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
您最近一年使用:0次
2 . 已知
,其中
,
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2ba685663bf232cf190132cbb3ebf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5bea10469740c08646423c152adb1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edfccf9159bb4010669e938f788149b.png)
您最近一年使用:0次
3 . 已知
,
,其中
,若
,
求(1)
的值;
(2)
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba412a7f946516b045f6c0b1963c7e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde114a78b6b04a17b2a38709ddb9b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f102439ebd1efd422f04209ecec2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
求(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次