M(2m+3,m),N(m-2,1),直线MN的倾斜角为直角已知M(2m+3,m),N(m-2,1),当m=_时,直线MN的倾斜角为直角;
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![M(2m+3,m),N(m-2,1),直线MN的倾斜角为直角已知M(2m+3,m),N(m-2,1),当m=_时,直线MN的倾斜角为直角;](/uploads/image/z/6910447-31-7.jpg?t=M%282m%2B3%2Cm%29%2CN%28m-2%2C1%29%2C%E7%9B%B4%E7%BA%BFMN%E7%9A%84%E5%80%BE%E6%96%9C%E8%A7%92%E4%B8%BA%E7%9B%B4%E8%A7%92%E5%B7%B2%E7%9F%A5M%282m%2B3%2Cm%29%2CN%28m-2%2C1%29%2C%E5%BD%93m%3D_%E6%97%B6%2C%E7%9B%B4%E7%BA%BFMN%E7%9A%84%E5%80%BE%E6%96%9C%E8%A7%92%E4%B8%BA%E7%9B%B4%E8%A7%92%3B)
M(2m+3,m),N(m-2,1),直线MN的倾斜角为直角已知M(2m+3,m),N(m-2,1),当m=_时,直线MN的倾斜角为直角;
M(2m+3,m),N(m-2,1),直线MN的倾斜角为直角
已知M(2m+3,m),N(m-2,1),当m=_时,直线MN的倾斜角为直角;
M(2m+3,m),N(m-2,1),直线MN的倾斜角为直角已知M(2m+3,m),N(m-2,1),当m=_时,直线MN的倾斜角为直角;
当直线倾斜角为直角时,这条直线上的所有横坐标都相等
即2m+3=m-2,所以m=-5
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