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Many-One onto Function

If the value ...

Question

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

256

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Solution

The correct option is A 256
$| A | = 16, O r d e r (A) = 3, | a d j A | = | A |^{2} = 16^{2} = 256$

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