【摘要】 根据一类n阶实方阵行列式D(n)具有直观几何意义的事实 ,给出了D(n)的若干等价命题 ,以及在解决平面三点共线、空间四点共面、数列及其它行列式计算等问题上的巧用更多还原

【Abstract】 Based on the fact that a kind of determinant n×n matrix on R,D(n),has visible geometry character,this paper shows many propositions as equivalent as D(n),and do shows a clever use of D(n) in solving problems of 3 dot on same line on flat,4 dot on same surface in space,progression and calculating other determinants and so on.更多还原