If matrix A=[(1,2),(4,3)] , such that AX=l , then X is equal to
If A =[(1,-1),(2,5)] and B=[(-2,2),(3,1)] then find the values BA+2l, where l is the identity matrix.
Let matrix B be the adjoint of a square matrix A, l be the identity matrix of the same order as A. If k ( ne 0) is the determinant of the matrix A, then what is AB equal to ?
If A square matrix such that A^2 = A , then (l+A )^3 -7A is equal to :
If a square matrix A is such that "AA"^(T)=l=A^(T)A , then |A| 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 :
