定义:在平行四边形中,若有一条对角线是一边的两倍,则称这个平行四边形为两倍四边形,其中这条对角线叫做两倍对角线,这条边叫做两倍边.
如图1,四边形
是平行四边形,
,延长
交
于点
,连结
交
于点
,
,
.
(1)若
,如图2.
①当
时,试说明四边形
是两倍四边形;
②是否存在值
,使得四边形
是两倍四边形,若存在,求出
的值,若不存在,请说明理由;
(2)如图1,四边形
与四边形
都是两倍四边形,其中
与
为两倍对角线,
与
为两倍边,求
的值.
![](https://img.xkw.com/dksih/QBM/2020/6/23/2491027494461440/2493582531592192/STEM/97d37060-a3a4-41bc-80a0-18f1b66096d6.png?resizew=180)
如图1,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acc0628dabbbaa929b7437021cad8a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3be96420ac78c8621fcb47a45514fa8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a876bc003f6c042c24ff4d8c11c8a8.png)
②是否存在值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)如图1,四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a876bc003f6c042c24ff4d8c11c8a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/2020/6/23/2491027494461440/2493582531592192/STEM/97d37060-a3a4-41bc-80a0-18f1b66096d6.png?resizew=180)
![](https://img.xkw.com/dksih/QBM/2020/6/23/2491027494461440/2493582531592192/STEM/8ae70c05-d83a-4e81-8d74-a6ea308fbcdc.png?resizew=186)
更新时间:2020-06-27 11:09:33
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】教材再现:面积法是常用的求长度法,如例图中,等腰
中,
.即
,∵
,∴
是个固定值.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/8a95f127-8786-41bc-b333-8035d9088677.png?resizew=494)
(1)如图1,在矩形
中,
与
交于O,
,P是
上不与A和D重合的一个动点,过点P分别作
和
的垂线,垂足分别为E,F,则
的值为_________.
知识应用:
(2)如图2,在矩形
中,点M,N分别在边
,
上,将矩形
沿直线
折叠,使点D恰好与点B重合,点C落在点
处.点P为线段
上一动点(不与点M,N重合),过点P分别作直线
,
的垂线,垂足分别为E和F,以
,
为邻边作平行四边形
,若
的周长是否为定值?若是,请求出
的周长;若不是,请说明理由.
(3)如图3,当点P是等边.
外一点时,过点P分别作直线
、
、
的垂线、垂足分别为点E、D、F.若
,请直接写出
的面积_________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08d506b6f491772cc2819f680acb4cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a61457398f8194b0d86cdbf4df13c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92a992c7a83c71803b3d917bc8b335f7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/8a95f127-8786-41bc-b333-8035d9088677.png?resizew=494)
(1)如图1,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be43133910b48169f27dea860c9d8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bce17597a7a6a83cd4287d424db6b56.png)
知识应用:
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2affb11af880295a826ebcb22b9d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acb51aeb863a2e41499609103bc2e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b850b83af8a661c95de5af44266b85.png)
(3)如图3,当点P是等边.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321c834d9babea8e3d32354bc0c9875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】直线
经过点
,与抛物线
(a为常数,且
)相交于点
,
两点,当
的值最小时,
,设抛物线
的顶点为
.
(1)求
的值;
(2)当直线
与
互相垂直时,求
点坐标;
(3)若抛物线
与
轴负半轴交于点
,点
在
轴上,当
时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a0c87ac14dbb770c95d74d6e26073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc98b99ad90dc80340d89eb57ec1c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe197f95a36f68ee80f69ff5f4a26970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708d0e76f524d0e8a48db01392faac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc98b99ad90dc80340d89eb57ec1c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)若抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc98b99ad90dc80340d89eb57ec1c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87904cbd0835d18534523a521332e1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】如图1,▱ABCD中,E是AD的中点,将△ABE沿BE折叠后得到△GBE,且 点G在□ABCD内部.将BG延长交DC于点F.
(1)猜想并填空:GF DF(填“>”、“<”、“=”);
(2)请证明你的猜想;
(3)如图2,当∠A=90°,设BG=a,GF=b,EG=c,证明:c2=ab.
(1)猜想并填空:GF DF(填“>”、“<”、“=”);
(2)请证明你的猜想;
(3)如图2,当∠A=90°,设BG=a,GF=b,EG=c,证明:c2=ab.
![](https://img.xkw.com/dksih/QBM/2017/8/31/1764139954315264/1764576726007808/STEM/576ad86db3fb45b89f9eaf77bccbb249.png?resizew=334)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
【推荐2】如图1,在平行四边形
中,
平分
交
于点
,
于点
,交
于点
,且
,连接
.
,
,求
的长度;
(2)如图2,若
平分
交
于点
,
于点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21204d1c00149a21f59c004f6b927237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc95af9238cf516b1f60fd4c51b409a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300d3ec6447250bb25915ae86873929a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685bc9f51445c6ecd5158f4419969f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914edb2b20ecb1a155230bce4598d980.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】如图,在平面直角坐标系中,直线y=kx﹣4与反比例函数y=
(x>0)的图象交于点A,与y轴交于点C.点B在x轴上,∠ABO=90°,AB=BO.
(1)求k的值;
(2)点D(m,0)在x轴正半轴上,连接AD,CD,
ACD是以AC为斜边的直角三角形.请用两种不同的方法求m的值.
(3)在(2)的条件下,点E在反比例函数的图象上(不与A重合),若
,请求出点E的坐标.
(4)若P为直线y=kx﹣4上的动点,Q为反比例函数y=
(x>0)的图象上的动点,且以点P、Q、O、C为顶点的四边形是平行四边形,请直接写出点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b7588653f727b6ff391077af2781e5.png)
(1)求k的值;
(2)点D(m,0)在x轴正半轴上,连接AD,CD,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4cba95fc7d4853a243f8e3fb20ce70.png)
(3)在(2)的条件下,点E在反比例函数的图象上(不与A重合),若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800bd1a358bb1a9f1728d2f5164e69b5.png)
(4)若P为直线y=kx﹣4上的动点,Q为反比例函数y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b7588653f727b6ff391077af2781e5.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712411482333184/2716900231356416/STEM/bbd91e0d91344ff1b3a72769911be607.png?resizew=169)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】阅读下列材料:
在九年级下册“5.2二次函数的图像和性质”课时学习中,我们发现,函数:
中
的符号决定图像的开口方向,
决定图像的开口大小,为了进一步研究函数的图像和性质,我们作如下规定:如图
,抛物线上任意一点(
)(异于顶点
)到对称轴的垂线段的长度(
的长度)叫做这个点的“勾距”,记作
;垂足(
)到抛物线的顶点(
)的距离(
)叫这个点的“股高”,记作
;点(
)到顶点(
)的距离(
的长度)叫这个点的“弦长”,记作
;过这个点(
)和顶点(
)的直线(
)与对称轴(
)相交所成的锐角叫做这个点的“偏角”,记作
.
由图1可得,对于函数
:
(1)当勾距
为定值时
①
;股高和弦长均随
增大而增大;
②
;偏角随
增大而减小;
(如:函数
中,当
时,
;
)
(2)当偏角
为定值时
,勾距、股高和弦长均随
增大而减小;
(如:函数
中,当
时,
、
)
利用以上结论,完成下列任务:
如图2:已知以
为顶点的抛物线
与
轴相交于点
,若抛物线
的顶点也是
,并与直线
相交于点
,与
轴相交于点
.
(1)函数
中,①当
时,
________,②当
时,
________;
(2)如图2:以
为顶点作抛物线:
和
与
轴相交于点
与直线
相交于点
,与
轴相交于点
:
①当
时,设
,随
的取值不同,
的值是否发生改变,如果不变,请求出
的值,如果发生改变,请直接写出
的取值范围;
②若点M在抛物线
上,直线
与
的另一个交点为
,记
的面积为
,
的面积为
,若
,请求出
的值
在九年级下册“5.2二次函数的图像和性质”课时学习中,我们发现,函数:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64821ae29c0539ca5e7492abc8b4fe50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/4/69f3024d-5186-4e20-91e9-b218f5c44dea.png?resizew=371)
由图1可得,对于函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f3023b526438933a05bed6f671730d.png)
(1)当勾距
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c67b92af22dfe333ba783d69e6a84d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7b00f7eeb35d01fcd7a24ece1d91db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
(如:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b419678ab14675ac01815b822b484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfbe90cfe0c6a51e508a0928d940b2f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3fd0eeb5f658c765d8c8295122148c6.png)
(2)当偏角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9732f8dd3db1bc88f9dd2b732ac96e4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8d40e257f9c446b8e30fa841b74bbd.png)
(如:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c69a23d106fd34aa17b22e9c9a8de36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8c329e0427cdecc47aa63bea9a5e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b0f355fef6396f59533a755acdbe48.png)
利用以上结论,完成下列任务:
如图2:已知以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90859a62adc47a78418bcbee8d2b888a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a97bfdc69eb2d22f1469d68294328b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/108c18cb76d7d34b05c991a644c8b136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb70883828ee231b42167ca909d4f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cf714ffb3fd5917a76b191640b55fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/050294162a78c6f4d6a87849bd3049a3.png)
(2)如图2:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90859a62adc47a78418bcbee8d2b888a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53148fd88ef375a1b5fa0bcc2f91618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5623079e8aba96b38803d41671a9aaf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e189dbc979fad6bf8ca03ac1388cbac0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406548746db26cb4dfb5995beaad9dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
②若点M在抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a94173bc376094fed682f27d764c8829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99db03404e48d64e11ad9e953e874ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37dce3065089e3b1511b16cf8738dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次