1 . 设
的内角
所对边的长分别为
,则下列命题正确的是
(1)若
,则
; (2)若
,则
;
(3)若
,则
; (4)若
,则
;
(5)若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272058608afabdb02a59321e1bffe344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c31b95c668a5bcc8c93479405ca6f0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b489ff67a08117de227196cb06fb6a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e060da00ae96adf38f6d1253af02f7e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f135a4908c208e3f69e0090fc9a667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b28a2f873db9f7ecbe6f2167f31f7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d003e6ef2774dc22303529409c037caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c31b95c668a5bcc8c93479405ca6f0f.png)
(5)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adecf46177c9d9a7ca00fe4290f20d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e5604ce8f1fbcdfe9b42b74cdc9e9d.png)
A.(1)(2)(3) | B.(1)(2)(5) |
C.(1)(3)(4) | D.(1)(3)(5) |
您最近一年使用:0次
2019-02-12更新
|
1648次组卷
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2卷引用:安徽省部分省示范中学2018-2019学年高一下学期期中数学试题