If `A=[a_("ij")]_(4xx4)`, such that `a_("ij")={(2",","when "i=j),(0",","when "i ne j):}`, then `{("det (adj (adj A))")/(7)}` is (where `{*}` represents fractional part function)

Let A=[a_(ij)]_(3xx3) be such that a_(ij)=[{:(3, " when",hati=hatj),(0,,hati ne hatj):}" then " {("det (adj(adj A))")/(5)} equals : ( where {.} denotes fractional part function )

If A=[a_(ij)]_(4xx4) such that a_(ij)={(2; if i=j),(0; if i!=j)) then {det(adj(adjA))/7} is (where {.} represent fractional portion) (A) 1/7 (B) 2/7 (C) 3/7 (D) none of these

IfA=[a_(ij)]_(2xx2) such that a_(ij)=i-j+3, then find A.

let A={a_(ij)}_(3xx3) such that a_(ij)={3,i=j and 0,i!=j .then {(det(adj(adjA)))/(5)} equals: (where {.} represents fractional part)

If A=[a_(ij)] is a 2xx2 matrix such that a_(ij)=i+2j, write A

If A = [a_(ij)] is a square matrix of order 2 such that a_(ij) ={(1," when "i ne j),(0," when "i =j):} , then A^(2) is:

If A = [a_(ij)] is a square matrix of order 2 such that a_(ij)={{:(1,"when " i ne j),(0,"when "i = j):} that A^2 is :

If A=[a_(ij)]_(2xx2)" where "a_(ij)=2i+j," then :"A=