【单选题】
已知直线过点<img class="kfformula" src="20190809/1565321501439277.png" data-latex="\left ( {\sqrt {3},-3} \right )"/>,且倾斜角为30°,则直线的方程是( )
①
<img src="20190809/1565321420131356.png" title="1565321420131356.png" alt="图片49.png"/>
②
<img src="20190809/1565321484569743.png" title="1565321484569743.png" alt="图片50.png"/>
③
<img src="20190809/1565321493966443.png" title="1565321493966443.png" alt="图片51.png"/>
④
<img src="20190809/1565321498657079.png" title="1565321498657079.png" alt="图片52.png"/>
【单选题】
量得两点间的倾斜距离为S,倾斜角为α,则两点间水平距离为
【单选题】
直线的斜率为1,且纵截距为2,则直线的斜截式方程是( )
①
<img src="20190809/1565321045149356.png" title="1565321045149356.png" alt="图片39.png"/>
②
<img src="20190809/1565321051877721.png" title="1565321051877721.png" alt="图片40.png"/>
③
<img src="20190809/1565321057162132.png" title="1565321057162132.png" alt="图片41.png"/>
④
<img src="20190809/1565321061378150.png" title="1565321061378150.png" alt="图片42.png"/>
【单选题】
如果直线经过平面上一点,且平行于平面上的一条直线,则直线与平面的关系是( )。
【单选题】
已知直线AB的坐标方位角为186°,则直线BA的坐标方位角为( )。
【单选题】
已知点M(1,-2)、N(3,-1)和直线x+2y-1=0,则( )
【判断题】
已知直线AB的坐标方位角为186°,则直线BA的坐标方位角为276°。
【单选题】
如果直线经过平面上的两个点,则直线与平面的关系是( )。
【单选题】
直线AB的正面投影与OX轴倾斜,水平投影与OX轴平行,则直线AB是( )
①
Normal
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EN-US
ZH-CN
X-NONE
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font-family:等线;
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水平线
②
Normal
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7.8 磅
0
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EN-US
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X-NONE
/* Style Definitions */
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font-size:10.5pt;
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font-family:等线;
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正平线
③
Normal
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X-NONE
侧垂线
④
Normal
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X-NONE
/* Style Definitions */
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mso-hansi-theme-font:minor-latin;
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一般位置线
【单选题】
已知点M(2,-1)、N(1,4)和直线 x+2y-1=0,则( )