" 1.If "B" is an idempotent matrix and "A=I-B" then "AB=

If B is an idempotent matrix,and A=I-B then a.A^(2)=A b.A^(2)=I c.AB=O d.BA=O

If Z is an idempotent matrix, then (I+Z)^(n)

If A is an idempotent matrix and I is an identify matrix of the Same order,then the value of n, such that (A+I)^(n)=I+127A is

If A is an idempotent matrix, then show that B=l-A is also idempotent and AB=BA=0

If A is an idempotent matrix satisfying (I-0.4A)^(-1)=I-alphaA where I is the unit matrix of the same order as that of A then the value of alpha is

If A is an idempotent matrix satisfying,(I-0.4A)^(-1)=I-alpha A, where I is the unit matrix of the name order as that of A, then th value of |9 alpha| is equal to

" For the matrix A and identity matrix "I," if "AB=BA=I" then that matrix "B" is inverse matrix and "A" is invertible "A^-1=

If A,B and A+B are idempotent matrices, then