If `0

If A={:[(0,0,0),(0,0,0),(1,0,0)]:} , then

If A = [{:( 0,0,0),(0,0,0) ,(0,1,0):}] ,then A is

If A=[(0,0,0,0),(0,0,0,0),(1,0,0,0),(0,1,0,0)] then (A) A^2=I (B) A^2=0 (C) A^3=0 (D) none of these

If A=[[a, 0, 0], [0, a, 0], [0, 0, a]] , then |adjA|=

If A=[[a, 0, 0], [0, a, 0], [0, 0, a]] , then |A||adjA|=

If A=[[a,0,0] , [0,a,0] , [0,0,a]] then |adj A|=

If A={:[(a,0,0),(0,a,0),(0,0,a)],:}" then: "|A|*|adj.A|=

If A = [{:( 0,0,0),( 1,0,0),(0,1,0):}] ,then

If A=[(alpha, 0,0),(0,b,0),(0,0,c)] and a,b,c are non zero real numbers, then A^-1 is (A) 1/(abc) [(1,0,0),(0,1,0),(0,0,1)] (B) 1/(abc) [(a,0,0),(0,b,0),(0,c,0)] (C) 1/(abc) [(a^-1,0,0),(0,b^-1,0),(0,c^-1,1)] (D) [(a^-1,0,0),(0,b^-1,0),(0,c^-1,1)]