在
中,内角
的对边分别是
,
,
,
,
,求
.
![](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/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab1c19b66cda3fb899f06d9a25e973c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5241f6bd2949476b03edc796957bc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069390dd908ff203327958117a226593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
更新时间:2021-11-05 08:47:03
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
的部分图象如图所示.该图象与y轴交于点
,与x轴交于B,C两点,D为图象的最高点,且
的面积为
.
(1)求
的解析式及其单调递增区间.
(2)若将
的图象向右平移
个单位长度,再将所得图象上所有点的横坐标伸长为原来的2倍(纵坐标不变),得到函数
的图象.若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f079822740a43def4c00aca26b0607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb8830753a3395019e44556fd0c9ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a84757fa1fc2e9bf6134c12dce7fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/d8737159-f56d-4e32-880b-e771fa32e8db.png?resizew=156)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab687924d472bee3f047c4a5042912c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ed129db6e9ecf24e6cb87fa9c364c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9e2a251b18e93c02284aac889d0208.png)
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(0.65)
名校
【推荐2】在平面直角坐标系
中,
是坐标原点,角
的终边
与单位圆的交点坐标为
,射线
绕点
按逆时针方向旋转![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
弧度 后交单位圆于点
,点
的纵坐标
关于
的函数为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/bfe4a34b-7db4-4815-af10-786a7ff8f74f.png?resizew=153)
(1)求函数
的解析式,并求
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcee250c0209bafc326a602ab44594da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8111b51754b9b448995098efecee98f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/bfe4a34b-7db4-4815-af10-786a7ff8f74f.png?resizew=153)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8111b51754b9b448995098efecee98f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df761fa4f63dffa98be64b740d885a1c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124816aae8ca203490bd117d9cb6b3f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3744ee15af01a8e7c0f126edb5f68132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0d1ea1a1d3adfc87a0a0c80413da75.png)
您最近一年使用:0次
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解题方法
【推荐1】在①
,②
,③
三个条件中任选一个,补充在下面的问题中,并解决该问题.
在
中,内角
的对边分别是
,且满足 ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce274bd55198347875f07584b8f8006.png)
(1)若
,求
的面积;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2793b77d558fe7051e0c33d058da4c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bb16fb7180974ada188556db1bbf35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6eafaa8f250ebdb92599ad2d0ae30f.png)
在
![](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/3ce274bd55198347875f07584b8f8006.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be4380bdcef1c542604a6ad61642c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1810555c0c28fe352841322b85bbc6.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】记
的内角
的对边分别为
.已知
.
(1)证明:
;
(2)若
,求边长
.
![](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/8ab46f5c3a111557d38c49e10fa99388.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f296989add06c4bc2207a20b0746e533.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92432d21120e42ecf79a54d064d1655d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cda097a4e7c41100e573d8304ee066.png)
您最近一年使用:0次