(1)
.
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440cce7b2dd0dc21de9e0687848bcc56.png)
(其中
为第二象限角)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565bebf8472f3764fa1ca597cca561aa.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440cce7b2dd0dc21de9e0687848bcc56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e61123c3d2642a2de5582967f581df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
更新时间:2017-06-15 19:54:21
|
相似题推荐
解答题-问答题
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适中
(0.65)
名校
【推荐1】已知
.
(1)求
的值.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7df439dfff0f1c237abc11efaa7e7e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f372fe4ef0d08a9c4d2a7139a664d52.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d302fe58b7f7928bfb443bdf008ac4f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】在
中,已知
.
(1)若
,求
的值;
(2)已知中线
交
于
,角平分线
交
于
,且
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c1bc979248bc0f9a3468c1aa4dd2a5.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686701fb6a905ffa668539c9092e568b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c181f86de3c96a7ef7a1a04c3a438f.png)
(2)已知中线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810fee760e06028fb7d37e65db79bfa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c096bd244d7e30e8ef26fb5278aac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】已知
是第三象限角,且
,
(1)化简
;(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79e2088cf92ec77d6eccd1f59a3b9287.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db73deb6fa502e49e3c873ef076fbc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
您最近一年使用:0次
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3e4a762fb8c5f93bd96f0005b194e.png)
(1)若角
的终边过点
,求
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3e4a762fb8c5f93bd96f0005b194e.png)
(1)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c262a8c52fe2d4acad77b714afaf05f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f280aa9106f8983fa107da81a2ce1bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f19975d8734bcd043c74ff51886d88b.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知
是关于
的方程
的两个实根,且
,
求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece887423a0a832afdfa286c0cd57d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9352e9333e6ef83b277ecc26b1c5efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63312a27c07df3d16d89181ec5aadbf2.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c622c280bce558b22c6ed5b7a12fabc1.png)
![](https://img.xkw.com/dksih/QBM/2011/12/28/1570635491090432/1570635496554496/STEM/1576847333f34e76a67957954acf4895.png?resizew=2)
您最近一年使用:0次