Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let 
be 
symmetric matrix with integer entries, then 
is invertible if
A
the first column of 
is the transpose of second row of 
is the transpose of second row of
B
the second row of 
is the transpose of first column of 
is the transpose of first column of
C
is diagonal matrix with non-zero entries in the principal diagonal
D
the product of entries in the principal diagonal of 
is the product of entries in the other diagonal
is the product of entries in the other diagonal
Text Solution
Verified by ExpertsThe correct answer is:
C
: If 
, then 
will be invertible only when 
.
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