1 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386ed5ab3aa33e27b9dd2af3826e19f1.png)
(1)求
及
的值;
(2)求证:
(
),并求
的值.
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386ed5ab3aa33e27b9dd2af3826e19f1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c315a91bca8863c21b91a050495c74.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98cb5a53391f42581956df5585b5f190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8042dbfe62564fe25de21237029a6619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec29b4de219fb32c8023c9f789d3e78.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1fa7ff012173435df567b200b346f7.png)
您最近一年使用:0次
2 . 已知
,
(1)求
的值;
(2)若
且
,求
的值;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34482692c04dc24412372cabf5d71f3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315b06e1bcf77dd299f334086a3a2c0d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d028c46e515914407d36fbd607a86f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e65967bdeffe3e70e24c04d8aecae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c4f801be1b2b87caa8a05804156ddf.png)
您最近一年使用:0次
3 . 已知
,定义
.
(1)求
的值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04c7ba0ffd54e60b2829f4440c91ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8539d2c98bc393310de388923d5367bb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81229861c3c17bfe1b7c2a7018ea1de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1495fc2d4d48e2d967be06f794af6d51.png)
您最近一年使用:0次