AP Precalculuseasymcq1 pt
The identity matrix I₂ is
A.[[1, 0], [0, 1]]
B.[[0, 1], [1, 0]]
C.[[1, 1], [1, 1]]
D.[[2, 0], [0, 2]]
Explanation
Core Concept
Ones on the diagonal, zeros elsewhere.
Correct Answer
A[[1, 0], [0, 1]]
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