DeterminantHard
Question
If A = 
, then adj A =
, then adj A = Options
A.A′
B.I
C.O
D.A2
Solution
A = 
Matrix formed by Cofactors of A= C =
∴ Adj A = CT =
= A′
Matrix formed by Cofactors of A= C =
∴ Adj A = CT =
= A′Create a free account to view solution
View Solution FreeMore Determinant Questions
If D = then D =...The number of real values of x satisfying = 0 is -...If a1, a2, a3 , ....,an , .... are in G.P., then the value of the determinant , is...If a, b, c > 0 and x, y, z R, then the determinant is equal to -...The least value of the product xyz for which the determinant is non-negative is :...