Let A and B be real matrices of the form [α00β] and [0δγ0], respectively. Statement 1: AB−BA is always an invertible matrix. Statement 2:AB−BA is never an identity matrix.
Held on 12 May 2012 · Verified 6 Jul 2026.
Statement 1 is true, Statement 2 is false.
Statement 1 is false, Statement 2 is true.
Statement 1 is true, Statement 2 is true; Statement 2 is a correct explanation of Statement 1 .
Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation of Statement 1.
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