Ch 3. Exs.2 Solved by 압둘라

2477 days ago by math2013

A=matrix(QQ,[[-2,3],[2,-3]]) B=matrix(QQ,[[-1,3], [2, 0]]) C=matrix(QQ,[[-4,-3],[0,-4]]) print A*B print A*C A*B==A*C 
       
[ 8 -6]
[-8  6]
[ 8 -6]
[-8  6]
True
[ 8 -6]
[-8  6]
[ 8 -6]
[-8  6]
True
B==C 
       
False
False