alleryWhat is the 2 × 2 identity matrix?
A[[0, 0], [0, 0]]
B[[1, 0], [0, 1]]
C[[0, 1], [1, 0]]
D[[1, 1], [1, 1]]
Answer & Solution
Correct answer: B. [[1, 0], [0, 1]]
The identity matrix has ones on its main diagonal and zeros elsewhere.
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