Recent content by dimitris t

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    High School Physics Olympiad: Links, Notes, Problems

    Does anyone knows links for physics olympiads ,lecture notes,problems ech?
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    High School Who invented the quadratic equation and how is it proved?

    For the proof have a look at http://mathworld.wolfram.com/QuadraticEquation.html and for more details at http://en.wikipedia.org/wiki/Quadratic_equation
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