Determinants Matrices Question 49

Question: The maximum and minimum value of $ (3\times 3) $ determinant whose elements belongs to $ {0,1} $ is

Options:

A) $ 1,-1 $

B) $ 2,-2 $

C) $ 4,-4 $

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

  • [b] $ {{| A |} _{\max }}= \begin{bmatrix} 0 & 1 & 1 \\ 1 & 0 & 1 \\ 1 & 1 & 0 \\ \end{bmatrix} =0-(-1)+1(1)=2 $
    $ \therefore {{| A |} _{\min }}=-2 $