如图,直线
与x轴交于点M,与y轴交于点A,过点A作
,交x轴于点B,以AB为边在AB的右侧作正方形ABCA1,延长A1C交x轴于点B1,以A1B1为边在A1B1的右侧作正方形A1B1C1A2…按照此规律继续作下去,再将每个正方形分割成四个全等的直角三角形和一个小正方形,每个小正方形的每条边都与其中的一条坐标轴平行,正方形ABCA1,A1B1C1A2,…,
中的阴影部分的面积分别为S1,S2,…,Sn,则Sn可表示为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0cd46f83439cc8feb3ad3b2dd1c77e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63696582e5d23425d9ae54b8d15c6bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e3dc0184e9926b189653cce933159d.png)
![](https://img.xkw.com/dksih/QBM/2019/10/18/2314445496532992/2314610202730496/STEM/dc40c104ebff4366a813c437ce9d7604.png?resizew=309)
更新时间:2019-10-18 14:29:25
|
相似题推荐
填空题
|
较难
(0.4)
【推荐1】如图,直线
与x轴和y轴分别交与A,B两点,射线
于点A,若点C是射线
上的一个动点,点D是x轴上的一个动点,且以A,C,D为顶点的三角形与
全等,则
的长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c30fd97fafb3779aa4f4660f41e2939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d390782b8ea7016628ee68403dcbfbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】将正比例函数y=kx(k是常数,k≠0)的图象,沿着y轴的一个方向平移|k|个单位后与x轴、y轴围成一个三角形,我们称这个三角形为正比例函数y=kx的坐标轴三角形,如果一个正比例函数的图象经过第一、三象限,且它的坐标轴三角形的面积为5,那么这个正比例函数的解析式是__ .
您最近一年使用:0次
填空题
|
较难
(0.4)
真题
名校
【推荐1】如图,一个由8个正方形组成的“
”型模板恰好完全放入一个矩形框内,模板四周的直角顶点
,
,
,
,
都在矩形
的边上,若8个小正方形的面积均为1,则边
的长为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/2021/9/8/2803574741721088/2804446444208128/STEM/29f14140-b276-42de-8b6f-a8b26c44015d.png?resizew=209)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,将正方形ABCD分割成四部分,拼成一个等腰三角形FGH,I,J分别为AB和EK的中点,FG=FH,若tan∠FGH=
,则
的值为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f558992e649b93ee36f37513781311a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd01a4cbd347fce1a7414eb9fa73d16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/71778b67-0ed2-41fb-9680-1fcb0a370337.png?resizew=157)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】在平面直角坐标系
中,正方形ABCD的位置如右图所示,点A的坐标为(1,0),点D的坐标为(0,2),延长CB交x轴于点A1,作正方形A1B1C1C,延长C1B1交x轴于点A2,作正方形A2B2C2C1,…按这样的规律进行下去,第1个正方形的面积为____________ ;第n个正方形的面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/14/fd419326-29da-40e2-beb6-4fd9a6a6406a.png?resizew=414)
您最近一年使用:0次
填空题
|
较难
(0.4)
解题方法
【推荐2】已知菱形
的边长为6,
,对角线
,
相交于点O,以点O为坐标原点,分别以
,
所在直线为x轴、y轴,建立如图所示的直角坐标系.以
为对角线作菱形
菱形
,再以
为对角线作菱形
菱形
,再以
为对角线作菱形
菱形
,…,按此规律继续作下去,在x轴的正半轴上得到点
,
,
,…,
,则点
的坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8419d8a804b005605301b56bd0839655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0fc6cf34323f80b94fe2a9d0867d62e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5100a0c882d737a4c8025fd6cb91928e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d77f02e8eb6827be9c42cdd153ccddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fcc4c48c6c8783ccd1543668ff91156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70346ae7052322b174003e6caf6e2a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d513111af7c460ba7a7f11cd2ff8ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2135b0d299ee5ac6190db07ac688eca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5bf350a619ef25d8d9b988f3db804e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b56e44e4f0424a2b7a45567120a2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐1】如图,标号为①,②,③,④的四个直角三角形和标号为⑤的正方形恰好拼成对角互补的四边形
,相邻图形之间互不重叠也无缝隙,①和②分别是等腰
和等腰
,③和④分别是
和
,⑤是正方形
,直角顶点
,
,
,
分别在边
,
,
,
上.若
,
,则
的长是___________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f6512d87f7a7da9b014f5a158aea13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0e1b2e9b17c6349ed7fe7dc2e19fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a91fb377b321a5966872dc34236d707.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8826829291473993cc370bb7ad02daa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89029e1d782dbf6a0bda8605a7c5ad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4eccda4edcee29a5f15609e85106df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb11667abcb2759f301391b9850352be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3864197879d33d10f16a6429b0227c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4993549e48437b305375feb2ad2251d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00590c69cde8b055b7b6e90c15306b28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72026e70f45cea6a7c49881592e73a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/13/7107de37-4c17-4b6a-830a-155e0bd92d2a.png?resizew=163)
您最近一年使用:0次
填空题
|
较难
(0.4)
【推荐2】如图,已知四边形ABCD,AC与BD相交于点O,∠ABC=∠DAC=90°,
,
,则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7308135fda2e4b9b16457b6aa12df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa87f300943730df1f4428b1af026ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a7322178eb93db131c725008972ff7.png)
![](https://img.xkw.com/dksih/QBM/2021/3/15/2678616592015360/2678991745171456/STEM/3c861d15-5f84-486b-ada3-f3ca69380271.png)
您最近一年使用:0次