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Andrei [34K]
3 years ago
10

What is a symmetric matrix?

Mathematics
1 answer:
horsena [70]3 years ago
7 0

Answer:

symmetric matrix is the square matrix and it is equal to its transpose

Step-by-step explanation:

solution

a symmetric matrix is the square matrix and it is equal to its transpose

As A is symmetric matrix  then

A = A^{T}

here only square matrices will be symmetric

and matrix A is symmetric its mean its matrices have equal dimension

and every square diagonal matrix is also symmetric when all off diagonals element is zero

symmetric matrix for all indices i and j

A = aij = aji

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Answer:

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Step-by-step explanation:

The square root is an operation that undoes an exponent of 2, which is the inverse operation of squaring a number.

3 0
2 years ago
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The length of one side of a square is (x + 2 1/4). If the perimeter is 14 units, what is the area?
Stels [109]

The perimeter is the total of adding all of the side lengths together.

A square has 4 equal side lengths.

So the perimeter of a square is:

P = s + s + s + s  or  P = 4s

[P = perimeter       s = side lengths of the square]


Since you know the side length of the square is (x + 2 1/4), you can replace s with (x + 2 1/4)

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P = 4x + 8 4/4

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Since you know the perimeter, you can plug it in.(you could have also plugged it in in the beginning)

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Now that you know x, find the side length of the square.

(x + 2 1/4)

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Step-by-step explanation:

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