Lectures on fundamental concepts of algebra and geometry (1911)
Young, John Wesley, 1879-1932, Denton, William Wells, Mitchell, Ulysses Grant · New York : Macmillan · leaf 201
uation for determining x, and if x isknown, (3) gives a quadratic equation for the determinationof z. No irrational operations other than the extraction ofsquare roots are necessary to solve this equation. The Regular Heptagon. — The treatment of the inscribedlieptagon is entirely similar to this,… … Fio. 24 point O (Fig. 24) of the complex plane, and choose the point1 = -4o to be one vertex of the inscribed heptagon sought,the other vertices Ai, A^, A^, A^ As, A^, are seen to be repre- LECTURE XVIII 189 sented by the complex numbers 2, 2*, 2^, 2*, 2*, 2*, and we findthat (4) 2^-1 = 0. The…
Algebra · Geometry
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