shawny8528 shawny8528 08-03-2024 Mathematics contestada Which of the following matrices are symmetric? (a) [[6,1],[-1,6]] (b) [[1,9],[9,0]] (c) [[3,-7,6],[-7,9,7],[6,7,9]] (d) [[0,0,8],[0,8,0],[2,0,0]]