在
中,内角
所对的边分别是
,且
,已知
,
,
.
(1)求
及
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70410f095a6d5b4b66ece2ad7bf1e461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b326dc38d92806c8911b9f9e1a3f323e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42190fdb24c6e918e06eb4a2ebf8856f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a30f965a9e4d7804c3bab0ec49ab8.png)
19-20高三上·天津红桥·期末 查看更多[5]
天津市红桥区2019-2020学年高三上学期期末数学试题天津市第三中学2022届高三下学期二模数学试题天津市第三中学2022届高三下学期三模数学试题(已下线)2022年高考天津数学高考真题变式题7-9题(已下线)2022年高考天津数学高考真题变式题16-18题
更新时间:2022-03-06 08:26:39
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解答题-证明题
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适中
(0.65)
【推荐1】已知
.
(1)求证:
;
(2)若关于
的方程
有两个不相等的实根,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa8556e1cc105c99642aa1a0718db59.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e90199d232f6521d73336596f673e2c.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bea9707a55d67de418787186efc7c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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适中
(0.65)
【推荐2】
的内角
所对的边分别为
,
,
,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397fca77f42d61ad3ff5388cee5bf80e.png)
(1)若
,证明:
;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/397fca77f42d61ad3ff5388cee5bf80e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9343f74bf345d23c44b16b8f2caa56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f059da60566b92b61d34897d99fe597.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8624f5dff56da4a587ef079483f90222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
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解答题-问答题
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适中
(0.65)
【推荐1】在
中,角
的对边分别为
.已知
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(1)求
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(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90744ce21367d8bf2f75453f9acb59d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b89e7ff008dea7530bdc4ea5b6419d.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】已知
是第二象限内的角,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286324435fb119077ac589556072677b.png)
(1)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286324435fb119077ac589556072677b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bb6b221bf719ab3394aaf0300c5855.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85930adf30acc19fd8a7aa340feae49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6852640cb9453cf758354b95d797088c.png)
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数
.
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(2)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6149aeb16c32d674689e86b911049259.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db61930eb2738fe05696f89779f8a8fe.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知a,b,c分别为
三个内角A,B,C的对边,且
.
(1)求A;
(2)若
,且
的面积为
,求b,c.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b11d83cc4abd3886788064b177a46c4.png)
(1)求A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
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解答题-问答题
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适中
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名校
【推荐2】在平面四边形
中,
,
,
.
(1)若
的面积为
,求
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(2)若
,
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.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32e1b499d6b25ee132abcdd3f3cd288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e7dc603317eb90974c75efec9f02b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7317d43414d8d968f0cb11f533f1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850ce1ce2556e889b4c6af32f234bfee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c96d049465a04bb9d09f97c0d33f7f1.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】如图,已知平面四边形
中,
.
四点共圆,求
;
(2)求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414d14a8db996bc758dac0dde9f27aad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐2】在
中,a,b,C为内角A,B,C的对边,且满足
.
(1)求角B的大小;
(2)已知
,
,
(i)求b及
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(ii)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73299e23a179f4fc9f454274846cac7.png)
(1)求角B的大小;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
(i)求b及
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(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b083a933706dadd400a3211ff0ced4.png)
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