On a Fixed Value Theorem for Directed Areas in Conic Circumscribed Polygons and Applications

用为圆锥形的节的极的方程，我们研究圆锥形的约束站在一起 n 的多角形(n 4 ) 深深地根据 papers^([1-3 ]) 。我们在圆锥形的约束站在一起 n 的多角形为一些三角形的指导区域获得一条一般固定价值定理并且象 n 一样导出同样多(三根线和某其它的 n -3) 同时发生的事件点在同一直线上，在圆锥形的约束站在一起 n 的多角形的 equiareal 结果(n 4 ) 。那么 papers~ 的结果([1-3 ]) 被统一。

Using polar equations for conic sections, we research conic circumscribed n-sided polygons（n ≥ 4） deeply on the basis of papers[1-3]. We obtain a general fixed value theorem for directed areas of some triangles in conic circumscribed n-sided polygons and derive as many as n（n - 3） concurrent points of three lines and some other collinear, equiareal results in conic circumscribed n-sided polygons（n ≥ 4）. So the results of papers[1-3] are unified.