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Can you explain the answer of this question below:
If in a square matrix A=[aij], we find that
aij = aji ∀ i,j, then A is a
  • A:
    symmetric matrix
  • B:
    diagonal matrix
  • C:
    skew symmetric matrix
  • D:
    transpose matrix
  • E:
    undefined
The answer is a.
Most Upvoted Answer
Can you explain the answer of this question below:If in a square matri...
Explanation:

Symmetric Matrix:
- In a symmetric matrix, the element in the ith row and jth column is equal to the element in the jth row and ith column.
- Mathematically, if a matrix A is symmetric, then aij = aji for all i,j.
- This property ensures that the matrix is symmetric across its main diagonal.

Given Matrix A:
- In the given square matrix A=[aij], we are given that aij = aji for all i,j.
- This means that the matrix A satisfies the condition for a symmetric matrix.

Conclusion:
- Therefore, the given matrix A is a symmetric matrix.
- Option A: Symmetric matrix is the correct answer.

Summary:
- A matrix is symmetric if it is equal to its transpose, i.e., aij = aji for all i,j.
- In the case of the given matrix A, the elements satisfy this condition, making it a symmetric matrix.
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Community Answer
Can you explain the answer of this question below:If in a square matri...
If aij=aji then it is symmetric matrix but if aij=-aji then it is skew symmetric because transpose of A is equal to A for symmetric matrix .and we know that transpose of matrix is defined as aij=aji
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Can you explain the answer of this question below:If in a square matrix A=[aij], we find that aij = aji ∀ i,j, then A is aA:symmetric matrixB:diagonal matrixC:skew symmetric matrixD:transpose matrixE:undefinedThe answer is a.
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