8.|[42,1,6],[28,7,4],[14,3,2]|

Evaluate the following: |[42,1,6],[28,7,4],[14,3,2]|

Evaluate the following: |[42,1,6],[28,7,4],[14,3,2]|

Without expanding show that the following determinants vanish |(42,1,6),(28,7,4),(14,3,2)|

Using the property of determinants and without expanding prove the following |{:(42,1,6),(28,7,4),(14,3,2):}|=0

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]

Solve: 2X+Y+[[-2,1,3],[5,-7,3],[4,5,4]]=0,X-Y=[[4,7,0],[-1,2,-6],[-2,8,-5]] .