" If a matrix "A" is such that "4A^(3)+2A^(2)+7A+I=O" ,then "A^(-1)" equals "

If a matrix A is such that 4A^(3)+2A^(2)+7A+I=0 , then A^(-1) equals

If a matrix A is such that 4A^(3)+2A^(2)+7A+I=0 , then A^(-1) equals: a) 4A^(2)+2A+7I b) -(4A^(2)+2A+7I) c) -(4A^(2)-2A+7I) d) 4A^(2)+2A-7I

If a matrix A is such that 3A^(3)+2A^(2)+5A+I=0, then A^(-1) is equal to

If a matrix A is such that 3A^3 +2A^2+5A+I= 0 , then A^(-1) is equal to

If A is a square matrix of order 3 and I is an ldentity matrix of order 3 such that A^(3) - 2A^(2) - A + 2I =0, then A is equal to

If A is a non singular matrix and I is a unit matrix of order same as A such that A^(2)+A-I=O , then A^(-1) is equal to

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

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

If A is square matrix such that A^(2)=A , then (I+A)^(3)-7A is equal to ……..