Question: Diagonalize the quadratic form with the matrix A 1 2 1 2 3 2 1 2 1 Use two methods: completion of squares and row

Diagonalize the quadratic form with the matrix A

1 2 1

2 3 2

1 2 1

Use two methods: completion of squares and row operations. Which one do you like better?

Can you say if the matrix A is positive definite or not?

Exercises 2 . 1 . Diagonalize the quadratic form with the matrix I A 2 3 2 1 2 Use two methods : completion of squares and row operations . Which one do you like better ? Can you say if the matrix A is positive definite or not

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