Chap 5 Designed Question 1

A={{1,2,3},{4,5,6},{7,8,8}};
Print["A=",A//MatrixForm];
Print["Det[A]=",Det[A]];
Print["Rank=",MatrixRank[A]//MatrixForm];

Print["Matrix of minors=",Minors[A]//MatrixForm];
Print["Minors[A,0]=",Minors[A,0]//MatrixForm];
Print["Minors[A,1]=",Minors[A,1]//MatrixForm];
Print["Minors[A,2]=",Minors[A,2]//MatrixForm];
Print["Minors[A,3]=",Minors[A,3]//MatrixForm];

A={{4,5,6},{4,5,6},{4,5,6}};
Print["A=",A//MatrixForm];
Print["Det[A]=",Det[A]];
Print["Rank=",MatrixRank[A]//MatrixForm];

Print["Matrix of minors=",Minors[A]//MatrixForm];
Print["Minors[A,0]=",Minors[A,0]//MatrixForm];
Print["Minors[A,1]=",Minors[A,1]//MatrixForm];
Print["Minors[A,2]=",Minors[A,2]//MatrixForm];
Print["Minors[A,3]=",Minors[A,3]//MatrixForm];

Chap 5 Designed Question 1

Chap 5 Designed Question 16(v)

A={{1,2,-1,-1},{0,1,5,6},{0,0,2,5}};
Print["A=",A//MatrixForm];
Print["RowReduce[A]=",RowReduce[A]//MatrixForm];

Chap 5 Designed Question 17(ii)

B={{1,2,0},{2,1,1},{1,2,3}};
Print["B=",B//MatrixForm];
Print["RowReduce[B]=",RowReduce[B]//MatrixForm];