Recent content by frunobulax

  1. frunobulax

    Who is Frunobulax on PhysicsFora?

    hello everybody - i am introducing myself. apart from my initial discomfort that the forum is not called physicsfora, i am very glad to have joined.
  2. frunobulax

    Undergrad Prove if x + (1/x) = 1 then x^7 + (1/x^7) = 1.

    just found myself doing this yesterday and stumbled on this post. i did it like this start with x + 1/x = 1 subtract 2/x from both sides & get: x - 1/x = 1 - 2/x multiply the equations together: x^2 - 1/x^2 = 1 - 2/x mult thru by x...