Home Maths Matrices and Determinants Karnataka - CET Previous Year Question If the value of a third order determinant is…
Maths Matrices and Determinants Karnataka - CET Previous Year Question Single Correct MCQ
Published on: August 14, 2026

If the value of a third order determinant is 16 , then the value of the determinant formed by replacing each of its elements by its cofactor is

A
96
B
256
C
48
D
1

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The correct answer is:
B

: Let be the matrix of order 3 .

Given,

The determinant formed by replacing each elements of the matrix by its cofactor is transpose of adj .

Now,

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