如图,在直角坐标系中,点A是函数
图象l上的动点,以A为圆心,1为半径作
.已知点
,连接
,线段
与x轴所成的角
为锐角,当
与两坐标轴同时相切时,
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428426e7f2ee0502b555a87a5cef6cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bc29145f6e7557711c34b443bd5e84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353902f5326218049bf4835d9a9b7ba3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/5/6e1d20c6-d991-407e-8b98-8a02dd72ef72.png?resizew=260)
更新时间:2023-01-26 12:22:56
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【推荐1】如图是根据某公园的平面示意图建立的平面直角坐标系,公园的入口位于坐标原点O,古塔位于点A(400,300),从古塔出发沿射线OA方向前行300m是盆景园B,从盆景园B向左转90°后直行400m到达梅花阁C,则点C的坐标是_________ .
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【推荐2】如图,已知A点从
点出发,以每秒1个单位长度的速度沿着x轴的正方向运动,经过t秒后,以O,A为顶点作菱形
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,若以
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所在的直线相切,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
_________ .
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【推荐1】将直线L1:y=2x+3沿y轴向下平移5个单位的到L2,则L1与L2的距离为____ .
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【推荐2】对于函数
,有下列性质:①它的图像过点
,②
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【推荐1】如图,以
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【推荐2】如图,O是正方形ABCD的对角线BD上一点,⊙O与AB,BC都相切,点E,F分别在边AD,DC上,现将
沿EF对折,折痕EF与⊙O相切,此时点D恰好落在圆心O处,若DE=2,则正方形ABCD的边长是_____ .
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【推荐1】如图,已知锐角α的顶点在原点,始边为x轴的正半轴,终边经过(1,2).如图,则sinα=_______ ,tanα=_______ ,cosα=________ .
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【推荐2】如图,O、B两点是线段
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