4|[2,8,4],[-5,6,-10],[1,7,2]|

Without expanding prove that: |[12, 2, 4, -5, 1],[-8, 1, -5, 2, -1],[6, 4, a ,-3, 2],[-10, 2, 1 ,3 ,4],[-2, 4, 6 ,8, -5]|=|[12, -4, -8, 10, -2],[4, 1, -5, 2, -1],[-3, 4, a, -3, 2],[5, 2, 1, 3, 4],[1, 4, 6, 8, -5]| .

Compute the following: [[-1,4,-6],[8,5,16],[2,8,5]]+[[12,7,6],[8,0,5],[3,2,4]]

Compute the following: [[-1,4,-6],[8,5,16],[2,8,5]]+[[12,7,6],[8,0,5],[3,2,4]]

Compute the following: : [[-1,4,-6],[8,5,16],[2,8,5]] + [[12,7,6],[8,0,5],[3,2,4]

Compute the following: [[-1,4,-6],[8,5,16],[2,8,5]]+[[12,7,6],[8,0,5],[3,2,4]]

Find the order of the matrix [{:(1,2,3,4,5,6,7),(5,6,7,8,4,5,6),(9,10,11,0,10,9,11):}]

Consider the marks obtained by 50 students in a mathematics test for a total marks of 10. 5,8,6,4,2, 5,4,9,10,2, 1,1,3,4,5, 8,6,7,10,2, 1,1,3,4,4, 5,8,6,7,10, 2,8,6,4,2, 5,4,9,10,2, 1,1,3,4,5, 8,6,4,5,8

If A={1,2,3,4,5,6,7,8} and B={1,3,4,6,7,8,9} then