1 . (1)计算:
:
(2)已知
是第三象限角,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb118b3e9eea26101f6f4ef353edd0e.png)
①求
的值;
②求
的值.
(3)化简:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc5164bc5e5705e7fd6debfff1f20a7.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb118b3e9eea26101f6f4ef353edd0e.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed77a5dce1b06476dd157de4866888d.png)
(3)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7daf2ff83cf61d47dcb30a7dd6f72c55.png)
您最近一年使用:0次
名校
2 . 化简计算:
(1)
;
(2)设
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565bebf8472f3764fa1ca597cca561aa.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275afa38f5f1e4a53bd503f3e1b22a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecd5f251e8a94a611cc98d239ff9575.png)
您最近一年使用:0次
2020-08-16更新
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1246次组卷
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3卷引用:河北省衡水市冀州区第一中学2020-2021学年高一上学期期末数学试题