(a) Compute and simplify S(x) (the Fourier series of f). (b) Simplify the expression of S(7). (It will involve a sum). (c) Using Dirichlet's theorem, find S(x). (Hint: think about the periodic extension of f, what is f(n¯) and f(a+)). (d) Use (b) and (c) to show that 9. 16 25 WI
(a) Compute and simplify S(x) (the Fourier series of f). (b) Simplify the expression of S(7). (It will involve a sum). (c) Using Dirichlet's theorem, find S(x). (Hint: think about the periodic extension of f, what is f(n¯) and f(a+)). (d) Use (b) and (c) to show that 9. 16 25 WI
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.5: Permutations And Inverses
Problem 4E: 4. Let , where is nonempty. Prove that a has left inverse if and only if for every subset of .
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