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KCET2020MathematicsDifferentiation

If A is a square matrix of order 3 and |A|=5 , then A adj. A is

Options

  1. A5
  2. B125
  3. C25
  4. D625

Correct answer

B. 125

Step-by-step solution

Given, |A|=5| Aadj A|=|A|³| Aadj A|=(5)³=125

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