Engineering
Mathematics
Introduction to Determinants
Question

Adj (Adj[2346])=

[2346]

[6342]

[6342]

[6342]

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Solution
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Adjoint of matrix is given by

[M11M12M21M22]
Here M11 = 6
M12 = 4
M21 = – 3
M22 = 2
So adjoint of the matrix is 
[6432]
Again adjoint of this matrix is
[2346]
Hence the answer is option A.
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