Deduce whether the matrices A and B commute or not. A= (arrayll 2 & 1 \\ 0 & 1 array ) B= (arrayll 1 & 1 \\ 0 & 1 array )

ABC26PH0775 · Quantum Chemistry

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

Deduce whether the matrices A and B commute or not.

\[ \mathrm{A}=\left(\begin{array}{ll} 2 & 1 \\ 0 & 1 \end{array}\right) \quad \mathrm{B}=\left(\begin{array}{ll} 1 & 1 \\ 0 & 1 \end{array}\right) \]

Answer

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Explanation

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