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解题方法
1 . 已知
中,
,
,
是线段
上的两点,满足
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3a059203f65774fd8f321faa9e8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6703a78d8d161ec1b7bcd5dcfe45b22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8149e6cd3d2f2304af7a8527002a6bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1cf680b83dd7afbca098d80d370ca2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb7025bdeee3a087a9c25f0dc564f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
您最近一年使用:0次
2023-04-14更新
|
976次组卷
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4卷引用:广东省阳江市2022-2023学年高二下学期期末数学试题
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2 . 如图,在
中,
是
边上一点,且
,
为直线
上一点列,满足:
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
___________ ,设数列
,则
的通项公式为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5924265437018c82f0e887fba99daad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5249105992198a3cbd7a4a643e5a1ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f406d1d51975809d406a561d4d9d18e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecf69901899bba130968c7a091790d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d48868b259993d0000b7c47525ebcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2022-12-05更新
|
1138次组卷
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7卷引用:江苏省盐城市响水中学2022-2023学年高二下学期期末模拟数学试题
江苏省盐城市响水中学2022-2023学年高二下学期期末模拟数学试题黑龙江省哈尔滨市第九中学校2022-2023学年高三上学期第三次月考数学试题天津市滨海新区大港第一中学2022-2023学年高三上学期1月阶段性测试数学试题福建省厦门外国语学校2024届高三上学期期中考试数学试题(已下线)专题05 数列 第一讲 数列的递推关系(分层练)(已下线)【讲】专题10 数列与其它知识的交汇问题(已下线)【练】 专题9 与图表有关的数列问题
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3 . 在
中,P,Q分别为边AC,BC上一点,BP,AQ交于点D,且满足
,
,
,
,则下列结论正确的为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/8ce37bbe-c0f7-4278-8ce9-06f484ad459c.png?resizew=156)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7abc23309378495afc6abd62cf180f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653f99f9d3f299793f8a9c490acf0922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e454a74fd8051bc7be466e5ad6bc1c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4a611415c6f78c87c4deaed8cdb5e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/8ce37bbe-c0f7-4278-8ce9-06f484ad459c.png?resizew=156)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若![]() ![]() |
D.![]() |
您最近一年使用:0次
2022-07-12更新
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5卷引用:湖北省九校教研协作体2022-2023学年高二上学期9月联考数学试题
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4 . 在平面凸四边形ABCD中,
,点M,N分别是边AD,BC的中点,且
,若,
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fa3aea72ccc36948a4a90f7368f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd0a8d5feb9e48a1b30f97b95616edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50756ebd242e6ac9dfce01c1ee03da1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1a41ca3516ff5e771153fae24360d6.png)
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2019-07-11更新
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4卷引用:江苏省南通市通州区2018-2019学年高二下学期期末数学(理)试题