perplexus.info :: Just Math : Subtract Products, Get Identity?

Subtract Products, Get Identity? (Posted on 2007-04-11)

P and Q are two 2x2 matrices and I is a 2x2 unit matrix.

Is it ever the case that PQ - QP = I?

See The Solution Submitted by K Sengupta

Rating: 2.5000 (2 votes)

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