If `A = [[a, b], [c, d]]`; find `adjA`

If A=[[a,b],[c,d]] then find A'

If A=|[a, b], [c ,d]| , find a d j\ A .

If A = [[a,b],[c,d]] then adj(adjA) is equal to; i] adjA ii] A iii] A^T iv] -A

If A=[[a,b],[c,d]] then find A^' .

If A=[abcd], find adjA

If A=[[a,b] , [c,d]] and B=[[a',b] , [c',d']] then find the value of A-B

If A=[(a,b),(c,d)] , then adj(adjA) is equal to

If A = [(a,b),(c,d)] show that, (i) adj (adj.A) = A (ii). (A^(-1))^(-1) = A .

If A= [[1,2],[3,4]] , adjA= [[4,a],[-3,b]] , then the values of a and b are: (a) a=-2, b=1 (b) a=2, b= 4 (c) a=2, b=-1 (d) a=1, b=-2

If A=[{:(4,5),(8,9):}] , then find adjA.