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If A is a symmetric matrix, then B’ AB is​
  • a)
    Skew symmetric
  • b)
    Symmetric
  • c)
    Neither symmetric nor skew symmetric
  • d)
    Both symmetric and skew symmetric
Correct answer is option 'B'. Can you explain this answer?
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If A is a symmetric matrix, then B’ AB is​a)Skew symmetric...
If AB is symmetric, then

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If A is a symmetric matrix, then B’ AB is​a)Skew symmetric...
Cannot be a matrix unless we know more about the specific properties of A and B.

A symmetric matrix is a square matrix that is equal to its transpose, i.e., A = A^T. This means that the entries of A are symmetric across the main diagonal.

B could be a matrix of any size and with any properties, as long as it is compatible with A for any matrix operations we want to perform. For example, if we want to multiply A by B, then B must have the same number of rows as A has columns.

Without any further information about A and B, we cannot say anything else about the relationship between them.
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If A is a symmetric matrix, then B’ AB is​a)Skew symmetric...
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