If `A=|a_(ij)|" is a"2xx3` matrix and `a_(ij) = 1 +ij`, then write down the matrix completely.

If A=[a_(ij)]" is a "2xx2 matrix and a_(ij) =((i+2j)^(2))/(2) , write down the matrix completely.

If A=[2 3 4 ] and B = [(10),(11),(12)] , then write down the matrix AB.

If matrix A=[(1,-1),(-1,1)] and A^(2) = kA , then write the value of k.

Let a b a 2 xx 2 matrix and |A| = 7 , find the value of |2A|.

Write down the value of det (2I_(3)) .

Write a 2xx2 matrix A = [a_(ij)] , whose elements are a_(ij)=i-j .

If A is a matrix of order 5 xx 5 and det A = 1, then find det (-A).

If A is a matrix of order 2xx3 and B is a matrix of order 3xx2 , then what is the order of the matrix AB?

Construct a 3xx4 matrix [a_(ij)] , where a_(ij)=2i-j .

If A = [[1,2],[-3,4]] , then write down the value of 10 A^(-1) .