如图,圆⊙O的半径为1,等腰直角三角形ABC的顶点B的坐标为(2,0),∠CAB=90°,AC=AB,顶点A在⊙O上运动,当直线AB与⊙O相切时,A点的坐标为____________ .
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19-20九年级上·江苏苏州·阶段练习 查看更多[3]
【区级联考】江苏省苏州市吴中区2019届九年级10月教学质量检测卷数学试题江苏省泰州市泰兴市洋思中学2020-2021学年九年级上学期9月月考数学试题(已下线)江苏省泰州市姜堰区南苑学校2022-2023学年九年级上学期数学独立作业10.12
更新时间:2018-10-12 20:49:41
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【推荐1】如图,⊙O中,BC为直径,AB切⊙O于B点,连AC交⊙O于D,若CD=2,AB=
,则BC=____ .
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【推荐2】如图,
是⊙O的直径,
,过点
作
的切线,
是切线上一点,且
,
是线段
的中点,连接
交⊙O于点
,过点
作
的垂线,交切线
于点
,交⊙O于点
,则
的长为______ .
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