If A is non-singular `A^(2)-5A+7I=0` then I=

If A is non-singular and (A-2I)(A-4I)=0 , then (1)/(6)(A)+(4)/(3)(A^(-1))=

If A is non-singular and (A-2I)(A-4I)=O, then (1)/(6)A+(4)/(3)A^(-1) is equal to OI b.2I c.6I d.I

If A is non-singular and (A-2I) (A-4I) = O , then 1/6 A + 4/3 A^(-1) is equal to

If A, B are square matrices of order 3, A is non-singular and AB=0, then B is a

If A is a non-singular matrix, then

If A^(2)+A+I=0, then A is non-singular A!=0(b) A is singular A^(-1)=-(A+I)

If A is non-singular matrix and (A+I)(A-I) = 0 then A+A^(-1)= . . .

Suppose l+A is non-singular.Let B=(I+A)^(-1) and C=I-A, then .... (where I,A,O are identity square and null matrices of order n respectively)

If A is a non-singular matrix, then A (adj.A)=