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28 July, 15:17

What is the determinant of an identity matrix?

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  1. 28 July, 15:32
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    Nonexistent

    Consider M2 (R) for a, b, c, d in R.

    det (M2 (R)) = ad-bc=0 for identity yet limx->0 (1/x)

    DNE therefore it is Undefined.
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