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January 28th, 2017, 03:29 PM   #1
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Degree of matrix

can someone please help me understand how from (1) and (2) -> p(BA)<=2?
https://gyazo.com/de8f3c414cb758d740a4095c235a1992
TYVM!
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February 16th, 2017, 04:14 AM   #2
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This does not really have anything to do with "matrices", just a basic property of addition. If a and b are real numbers such that then either a= b= 2 or one of a and b is less than 2, the other larger. The lesser of a and b must be less than or equal to 2.
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