If `A=[a_(ij)]` is a scalar matrix, then trace of A is

If A=[a_(ij)] is scalar matrix then the trace of A is

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 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 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)]_(3xx3) is a scalar matrix such that a_(ij)=5" for all "i=j," then: "|A|=

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