Preview question: Special matrices 1

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Question summary: Which type of matrices are the following ones? Match each matrix with its respective type. {[[0,8,9],[-8,0,2],[-9,-2,0]]; [[-1,0,0],[-8,-10,0],[9,-2,5]]; [[-1,-8,9],[0,-10,-2],[0,0,5]]; [[0,-8,9],[-8,0,-2],[9,-2,0]]; [[-1,0,0],[0,-10,0],[0,0,5]]} -> {lower triangular matrix; symmetric matrix; upper triangular matrix; diagonal matrix; antysimmetric matrix}

Right answer summary: [[0,8,9],[-8,0,2],[-9,-2,0]] -> antysimmetric matrix; [[-1,0,0],[-8,-10,0],[9,-2,5]] -> lower triangular matrix; [[-1,-8,9],[0,-10,-2],[0,0,5]] -> upper triangular matrix; [[0,-8,9],[-8,0,-2],[9,-2,0]] -> symmetric matrix; [[-1,0,0],[0,-10,0],[0,0,5]] -> diagonal matrix

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$open parentheses table row 0 8 9 row cell negative 8 end cell 0 2 row cell negative 9 end cell cell negative 2 end cell 0 end table close parentheses$	Answer 1
$open parentheses table row cell negative 1 end cell 0 0 row cell negative 8 end cell cell negative 10 end cell 0 row 9 cell negative 2 end cell 5 end table close parentheses$	Answer 2
$open parentheses table row cell negative 1 end cell cell negative 8 end cell 9 row 0 cell negative 10 end cell cell negative 2 end cell row 0 0 5 end table close parentheses$	Answer 3
$open parentheses table row 0 cell negative 8 end cell 9 row cell negative 8 end cell 0 cell negative 2 end cell row 9 cell negative 2 end cell 0 end table close parentheses$	Answer 4
$open parentheses table row cell negative 1 end cell 0 0 row 0 cell negative 10 end cell 0 row 0 0 5 end table close parentheses$	Answer 5

Preview question: Special matrices 1

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