计算下列各式的值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a976e25e793c188fb6fa9494120b07a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3e2112f3d9755388312d03e2a90b887.png)
更新时间:2022-02-19 09:58:21
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【推荐1】求下列各式的值:
(1)
;(2)
;
(3)
;(4)
;
(5)
(
);(6)
;
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f3fae1304b36c0aa24d98d4ae0508b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780dde1510af85b4838b0c9a7a2b51bc.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327d744aec6e1e787f10d421d3718c6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c52f66782b09c70904340de7624339.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5373a698b3d1b74dd39412264bf771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b21208364124b5c477b2ff8df1c2e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e164820e77f1b4a2168768e91a8e43.png)
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较易
(0.85)
【推荐1】已知
,
(
且
).
(1)求
的值;
(2)若
,求函数
的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ed6aae8b8d86df65aa0431359103ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ef41a5b1dca0d656501523ee58c504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e536766294135e563f816d893639b1ff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1218eda19f74a1ed50ab106265c6621f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ca3c53d481697331319132d2a8096a.png)
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解题方法
【推荐2】已知集合
,集合
,集合
.
(1)求
;
(2)设全集
,求
;
(3)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff48074ce2d4b8ec6b90c9348da6d34f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8cccd743dc714b4292ad72c54959929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f604fca7eb8a055b842ba0b6cb8e844.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0899a23c018a1f574b02688c23529d2f.png)
(2)设全集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713073cc7062a6d85586322f384d3be7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59de2d758d7a11fc3bd9479bdcb2012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0d51af53f5daf9b7d9724fa9a67a3b.png)
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