Question: Find the symmetric matrix A associated with the given quadratic form. 5x 2 1 - x 2 2 + 2x 2 3 + 2x 1

Find the symmetric matrix A associated with the given quadratic form.

5x21 - x22 + 2x23 + 2x1x2 - 4x1x3 + 4x2x3

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