alleryIn a skew-symmetric matrix, all the diagonal elements are:
Aequal and non-zero
Bnegative
Cone
Dzero
Answer & Solution
Correct answer: D. zero
For a skew-symmetric matrix A' = −A, which forces every diagonal entry to be 0.
Keep practising Matrices
Browse all Matrices questions for GRE, or explore more Mathematics topics.
Related questions
If $A=[a_{ij}]$ is a $3\times3$ matrix with $a_{ij}=i+j$, then the element $a_{23}$ is:In the identity matrix, the diagonal elements are 1 and all other elements are:For any matrix $A$, $(A')'$ equals:In a diagonal matrix, all the non-diagonal elements are:If $A$ is of order $2\times3$ and $B$ is of order $3\times4$, then $AB$ has order:Two matrices can be added only if they have:A square matrix $A$ is symmetric if:If $A$ is a matrix of order $m\times n$, then its transpose $A'$ has order: