If `A=[[0,0],[0,i]],` where `i=sqrt(-1),` then

If A=[[i,0],[0,i]];i=sqrt(-1), then A^(n) is equal to

If I=[[1,0],[0,1]] , then I^4=

If A[{:(i,0),(0,-i)]B=[{:(0,-1),(1,0)] and C =[{:(0,i),(i,0):}] where i= sqrt(-1) . Then which one of the following is correct ?

If A={:[(1+i,-i),(i,1+i)]:}," where "i=sqrt(-1)," and "A^(2)-2A+I=0," then ":A^(-1)=

If A =({:(i,0),(0,-i):}),B=({:(0,-1),(1,0):}),C=({:(0,i),(i,0):}) wher i = sqrt(-1) , then which one of the following is correct ?

If A=[[i, 0], [0, (i)/(2)]] , then A^(-1)=

If A=[[i,0],[0,i]] and B=[[0,-i],[-1,0]] then (A+B)(A-B)=

If A and B are two square matrices of order 2xx2 such that A=[(-1,0),(0,1)] , B=[(1,0),(i,1)] (where i=sqrt(-1) ) and A^TB^2021A=Q then value of AQA^T is