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Symmetric Matrices Consider the quadratic form Q(x) = 9x? + 7x + 11 x 8x,x2 + 8x1x3 Write the symmetric matrix A associated to

Symmetric Matrices Consider the quadratic form Q(x) = 9x? + 7x + 11 x 8x,x2 + 8x1x3 Write the symmetric matrix A associated to the quadratic form Q. [2 marks] b. Compute the determinant of A. [3 marks] a. Let 1

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