If `A=[(1,2),(3,4)]` then `8A^-4` is equal to (`I` is an identity matrix of order 2)

Let A and B are two non - singular matrices of order 3 such that A+B=2I and A^(-1)+B^(-1)=3I , then AB is equal to (where, I is the identity matrix of order 3)

Let A and B are two non - singular matrices of order 3 such that A+B=2I and A^(-1)+B^(-1)=3I , then AB is equal to (where, I is the identity matrix of order 3)

If A is a square matrix and |A|!=0 and A^(2)-7A+I=0 ,then A^(-1) is equal to (I is identity matrix)

Let A=[(0, i),(i, 0)] , where i^(2)=-1 . Let I denotes the identity matrix of order 2, then I+A+A^(2)+A^(3)+……..A^(110) is equal to

Let A=[(0, i),(i, 0)] , where i^(2)=-1 . Let I denotes the identity matrix of order 2, then I+A+A^(2)+A^(3)+……..A^(110) is equal to

If A=[(1,0),(-1,7)] and l is an identity matrix of order 2, then the value of k, if A^(2)=8A+kI , is :

Let f(x)=(1+2x)(1+2x+4x^(2)+8x^(3)+...oo) If A is a matrix for which A^(3)=0, then f(A) equals (I is identity matrix of order equivalent to order of A).

For a matrix A, if A^(2)=A and B=I-A then AB+BA +I-(I-A)^(2) is equal to (where, I is the identity matrix of the same order of matrix A)

For a matrix A, if A^(2)=A and B=I-A then AB+BA +I-(I-A)^(2) is equal to (where, I is the identity matrix of the same order of matrix A)

" .If "A=[[1,2],[-3,-4]]" and "l" is the identity matrix of order "2," then "A^(2)" equals "