名校
1 . 在
中,
.
(1)求
的大小;
(2)以下三组条件中恰有一组条件使得三角形存在且唯一确定,请选出该组条件并求
的面积.
条件①:
,
;
条件②:
,
;
条件③:
,
.
注:条件选择错误,第(2)问得0分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d28b92037b07266aa53647905aa670ee.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
(2)以下三组条件中恰有一组条件使得三角形存在且唯一确定,请选出该组条件并求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80df2a4a2a42722dc835702a86c7e40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97661ec75a6e3c3bc7d2234f83ae3aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
注:条件选择错误,第(2)问得0分.
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2021-12-22更新
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727次组卷
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6卷引用:北京市顺义区第二中学2022届高三适应性测试数学试题