(minor edit of mine to clarify "comparision" which is totally unnecessary: Grapes omitted "

in the pair (a,b)." which emphasizes the vector nature of the expression so my minor edit was unnecessary.

"It is important to understand that the Pythagorean Theorem means that the two legs of the right triangle

and

are orthogonal, so that

For the Binomial Expansion, this means that comparing the Pythagorean triangle with the Binomial Expansion

,

in the pair (a,b)."

Fricken despicable Village Idiot, braying "hee haw" from the echo chamber of the Peanut Gallery.

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