The book An Introduction to the Modern Theory of Equations was written by author Florian Cajori Here you can read free online of An Introduction to the Modern Theory of Equations book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is An Introduction to the Modern Theory of Equations a good or bad book?
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There are 12 primitive roots. We have a;2i _ 1 = (x' - l)(x" + x7 + 1). The roots of x' — 1 = are non-primitive for x^^ — 1 = 0. Since x' — 1 is a factor of x^^ — 1, tlie two primitive roots of x^ — 1 = are the two remaining non-primitive roots of x''' — 1 = 0. These two roots are roots of x2 4- a; + 1 = 0. Hence (x" -I- x'' -I- 1) -=- (x^ -|- x -1- 1) = is the re- quired equation. This is a reciprocal equation which can be depressed tox8-x6-6x*-l-6x3-f-8x2-8x-l-l=0. Ex. 14. If — V— 1 is a prim...itive root of x" - 1 = 0, find n. If — V— 1 is a non-primitive root, what values may n take ? CHAPTER VII SYMMETRIC FUNCTIONS OF THE ROOTS 68. Newton's Formulae for Sums of Powers of Roots. The sums of like powers of the roots of f(x) = can he expressed rationally in terms of the coefficients. The sum of the pth powers of the roots a, ji, y, 8, •■• of the equation f(x) = constitutes a symmetric function of the roots. The defini- tion and elementary discussion of symmetric functions were given in § 15.
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