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Math Help - Understanding Finite Field

  1. #1
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    Understanding Finite Field

    Please see this video



    At around 8:40 it is said that Q(A,B) + Q(A,C) = Q(B,C) so the given points form a right triangle
    But shouldn't it be Q(A,B) + Q(B,C) = Q(A,C)?

    Furthermore I don't think that's even a right angled triangle since Q(A,B) + Q(B,C) != Q(A,C) [i.e., 5 + 25 != 34]

    What is he trying to say?

    I have posted it in this forum because this video is trying to explain the basic properties of Finite Fields (7 in this case)

    PS: != means "not equal to"

    Thanks in Advance
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  2. #2
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    Nov 2010
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    Also, on this page,
    Rational trigonometry - Wikipedia, the free encyclopedia
    which quadrance do Q1, Q2 and Q3 represent in the paragraph showing the proff of Pythagorus Theorem?
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