If `A=|[1,0,1],[0,1,2],[0,0,4]|` then `|3A|`

If A=[[1,0,1],[0,1,2],[0,0,4]] then show that |3A|=27|A|

If A=[[1 ,0 ,1],[0 ,1, 2],[ 0, 0, 4]] , then show that |3A|" "=" "27|A|

If A=[[1,0,0],[0,1,0],[0,0,1]] then value of |A+A'| is 1)2 2)8 3)4 4)0

If A=[[1,0,0],[0,1,1],[0,-2,4]] and 6A^(-1)=A^2+cA+dI . Then c+d is

Evalute the determinants in queations 1 and 2 : If A=|{:(1,0,1),(0,1,2),(0,0,4):}|

If A=([3,0,0],[4,5,0],[2,1,6]) then A^(-1)=

If A^(-1)=[[1,-1, 2],[0, 3,1],[ 0 ,0,-1/3]] , then |A|=-1 b. adj A=[[-1, 1 ,2],[ 0,-3,-1],[ 0, 0, 1/3]] c. A=[[1, 1/3, 7 ],[0, 1/3, 1],[0 ,0,-3]] d. A =[[1,-1/3,-7],[ 0,-3, 0],[ 0, 0, 1]]