행렬곱셈의 교환성에 관한 연구

Abstract

In this paper, we prove the followings : Let be real numbers. Let and be matrices.. If then, for some real numbers . This fact is very easy and powerful in solving problems with respect to matrices in the SAT Mock Test or others. So, We propose that this fact should be introduced to High School Mathematics Curriculum.|In this paper, we prove the followings : Let be real numbers. Let and be matrices.. If then, for some real numbers . This fact is very easy and powerful in solving problems with respect to matrices in the SAT Mock Test or others. So, We propose that this fact should be introduced to High School Mathematics Curriculum.