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Exercise 1.7.12

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Let $S = [\begin{matrix} a & b \\ b & c \end{matrix}]$ , solve for $x^{T} Sx = a x_{1}^{2} + 2 b x_{1} x_{2} + d x_{x}^{2} = 2 x_{1} x_{2}$ , so we see $S = [\begin{matrix} 0 & 1 \\ 1 & 0 \end{matrix}]$ . The eigenvalues are $+ 1$ and $- 1$ .

niuers

2020-03-20 00:00

Exercise 1.7.12

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