If `A=[[a,b],[c,d]]` then `A^(2)` equals

If matrix A=[(a,b),(c,d)] , then |A|^(-1) is equal to

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

If {:S=[(a,b),(c,d)]:} , then adj A is equal to

If A=[(a,b),(c,d)] is such that |A|=0 and A^(2)-(a+d)A+kI=0 ,then k is equal to

If A and B are two matrices such that AB=A and BA=B, then B^(2) is equal to (a) B( b) A(c)1(d)0

Let x=[(2, 1),(0, 3)] be a matrix. If X^(6)=[(a, b),(c,d)] , then the number of divisors of (a+b+2020c+d) is equal to

If A={a,b},B={c,d},C={d,e} , then {(a,c),(a,d),(a,e),(b,c),(b,d),(b,e)} is equal to

If A^(20) = [(a,b),(c,d)] where A =[(1,1),(0,2)] then a+b+c+d is equal to