The eigenvalue(s) of the matrix 1 2 2 1 is/are · ABC26PH0793

Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Quantum Chemistry – General · Exam: JAM 2001-2022 · Marks: 2 · Difficulty: Easy

The eigenvalue(s) of the matrix $\begin{bmatrix} 1 & 2 \\ 2 & 1 \end{bmatrix}$ is/are
(a)–1
(b)1
(c)2
(d)3
Answer
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Explanation
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