The quadratic form Q: R³ → R is defined by Q(x₁, x2, x3) = x² + 4x² + 6x1x2 + 2x₁x3 + 2x2x3 Which of the following is the matrix of this quadratic form? 0 6:1 0 1 0 0 62 224 0 3 1 3 1 1 1 1 4 2 62 0 1 2 0 0 2 2 3 3 1 1 1 1 2

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