If `|[3,1,-4] , [3,2,5] , [1,-1,3]|=49` then `|[6,3,-16] , [6,6,20] , [2,-3,12]|=`

if |{:(3,1,-4),(3,2,5),(1,-1,3):}|=49 , then evaluate |{:(6,3,-8/3),(6,6,10/3),(2,-3,2):}| .

if |{:(3,1,-4),(3,2,5),(1,-1,3):}|=49 , then evaluate |{:(6,3,-8/3),(6,6,10/3),(2,-3,2):}| .

If A=[[3, 5, -1], [2, 0, 4], [1,-3, 0]] , then [[12, 4, -6], [3, 1, 14], [20, -14, -10]] is

If ,A = [(1,2),(-2,4)] ,then -3A= [(-3,-6),(6,-12)]

The matrix A satisfying A[(1,5),(0,1)]=[(3,-1),(-1,4)] is (a) [(3,2),(6,-3)] (b) [(3,-16),(6,-30)] (c) [(3,-16),(6,30)] (d) [(3,-3),(6,2)]

If [[2x+1,-1],[3,4y]]+[[-1,6],[3,0]]=[[4,5],[6,12]] ,find x,y.

Let A=[[3,6,5],[6,7,8]] and C=[[1,2,-3],[4,5,6]] Find 2A

Let A=[[1,2,-3],[2,1,-1]] B=[[2,3],[5,4],[1,6]] Find AB .

I: If A=[(0,1,2),(2,3,4),(4,5,-6)],B=[(-1,2,3),(0,1,0),(0,0,-1)] then 4A-5B=[(5,-6,-7),(8,7,16),(16,20,-19)] II:If A=[(1,2,3),(3,2,1)]B=[(3,2,1),(1,2,3)] then 3B-2A=[(7,2,-3),(-3,2,7)]

Delta=abs([1xx5,2xx5,3xx5],[3,1,6],[4,2,1]) =5 abs([1,2,3],[3,1,6],[4,2,1])