Question

The value of third order determinant is 11, then the value of the square of determinant formed by the cofactors will be :

• A. 11
• B. 121
• C. 1331
• D. 14641

Answer 1

Answer: (D)

14641

Answer 2

|AdjA|² = $|A|^{(n - 1)^{2}}$ = $(11)^{2^{2}}$= 11⁴ = 14641