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October 10, 201758平面直角坐标系之点的坐标17 minutesPlay方格纸上A、B两点,若以B点为原点,建立平面直角坐标系,则A点坐标为(3,4),若以A点为原点建立平面直角坐标系,则B点的坐标为_________...moreShareView all episodesBy 方先生侃数理化October 10, 201758平面直角坐标系之点的坐标17 minutesPlay方格纸上A、B两点,若以B点为原点,建立平面直角坐标系,则A点坐标为(3,4),若以A点为原点建立平面直角坐标系,则B点的坐标为_________...more
October 10, 201758平面直角坐标系之点的坐标17 minutesPlay方格纸上A、B两点,若以B点为原点,建立平面直角坐标系,则A点坐标为(3,4),若以A点为原点建立平面直角坐标系,则B点的坐标为_________...more