If `A` is a square matrix of order `2,` then `det(-3A)` is

If A is a square matrix of order 3, then the true statement is (where I is unit matrix) (1)det(-A)=-det A(2) det A=0 (3) det(A+I)=1+det A(4)det(2A)=2det A

If A is a square matrix of order 3 such that det(A)=(1)/(sqrt(3)) then det(Adj(-2A^(-2))) is equal to

If A is an invertible matrix of order 2, then det (A^(-1)) is equal to

If A is an invertible matrix of order 2 then det (A^(-1)) is equal to (a) det (A) (b) (1)/(det(A))(c)1 (d) 0

If A is a square matrix of order 2 and |A| = 7, then the value of |3A^(T)| is :

If A is a square matrix of order 3 such that A^(-1) exists, then |adjA|=

If A is a square matrix of order 3 and |A|=-2 , then the value of the determinant |A||adjA| is

If A is a non zero square matrix of order n with det(I+A)!=0 and A^(3)=0, where I,O are unit and null matrices of order n xx n respectively then (I+A)^(-1)=