If `A=[a_(i j)]` is a scalar matrix of order `nxxn` such that `a_(i i)=k` for all `i` , then trace of `A` is equal to `n k` (b) `n+k` (c) `n/k` (d) none of these

If A= (a_(ij) ) is a scalar matrix of order nxx n such that a_(ii)=k for all i, then trace of A is equal to

If A=[a_(ij)] is a scalar matrix of order nxxn such that a_(ii)=k for all I then trace of a=

If A=[a_(ij)] is a scalar matrix of order nxxn such that a_(ij)=k for all I then |A|=

If A=[a_(ij)] is a scalar matrix of order n xx n such that a_(ii)=k for all i, then trace of A is equal to nk(b)n+k(c)(n)/(k) (d) none of these

If A=[a_(ij)] is a scalar matrix of order nxxn and k is a scalar, then abs(kA)=

If A=[a_(ij)] is a square matrix of order nxxn and k is a scalar then |kA|=

If A=[a_(ij)]_(n xx n) such that a_(ij)=(i+j)^(2) then trace of A is

If S=[S_(i j)] is a scalar matrix such that s_(i i)= k and A is a square matrix of the same order, then A S=S A=? A^k (b) k+A (c) k A (d) k S

If S=[S_(i j)] is a scalar matrix such that s_(i i)=ka n dA is a square matrix of the same order, then A S=S A=? A^k (b) k+A (c) k A (d) k S

If A=[a_(i j)] is a square matrix of even order such that a_(i j)=i^2-j^2 , then (a) A is a skew-symmetric matrix and |A|=0 (b) A is symmetric matrix and |A| is a square (c) A is symmetric matrix and |A|=0 (d) none of these