(1) Let G = Z24 = [1]). (a) Explain why (2)-(10) in G. (b) Find all...
Let G be a group, and let a ∈ G. Let φa : G −→ G be defined by φa(g) = aga−1 for all g ∈ G. (a) Prove that φa is an automorphism of G. (b) Let b ∈ G. What is the image of the element ba under the automorphism φa? (c) Why does this imply that |ab| = |ba| for all elements a, b ∈ G? 9. (5 points each) Let G be a group, and let...
Let f: C→C be an entire, one-to-one function. (a) Explain why g()-f() f(0) is an entire 1-1 function (b) Explain why there exists0 such that B(O,e) C g(B(O, 1)). Hint: Open Mapping thm.] (c) Explain why Ig(z)2є if 221 . [Hint: g is 1-1.] (d) Since g(0)=0, g(z)=2h(z) for some entire function h(z). Explain why h(z) is never 0 (e) Show that there is a constant C>0 such that 1/h2)l C if21 (f) Deduce that 1/h (z) is a constant...
2. Let f(x) = x2+3x-10 x2+x-6 (a) Find the y-intercept. Show all work. (b) Find the x-intercept. Show all work. (c) Find the vertical asymptote(s). Show all work. (d) Find the horizontal asymptote. Explain your solution. (e) Does the rational expression have any holes? Explain.
(5 points each) Let G be a group, and let a € G. Let da: G+ G be defined by @a(g) = aga-l for all g E G. (a) Prove that Pa is an automorphism of G. (b) Let b E G. What is the image of the element ba under the automorphism ..? (c) Why does this imply that |ab| = |ba| for all elements a, b E G?
3. (25 points) Let f(x) = 2/2_8 (a) Find the domain of f. (b) Find the equation of all vertical asymptotes or explain why none exist. For each vertical asymptote = a, calculate both the one-sided limits limo+a+ f(x) and limo-ha-f(T). (c) Find the equation of all horizontal asymptotes or explain why none exist. C Bollett. ollett (d) Let g(x) = f(x) if x 70 For what value of b would g(x) be continuous at I=0? (or if no 91...
Please explain as detailed as possible, thank you! 1. Let S={0, 1, 2, 3, . . . , 150). and let A={x E S | x+100 E S} Write the roster notation of the set A. Also, find the cardinality of the set A. 2. For each natural number n, let An be the interval An (0,2/n) and let Bn be the interval Determine the following: (b) Un1Bn 3. Let the universal set be S = {1, 2, 3, 4,...
Theorem 7.5 Let G be a group. (1) G has a unique identity element (2) Cancellation Laws. For all a, b,ce G, if ab ac, then b-c. For all a, b,c E G, if ba-ca, then (3) Each element of G has a unique inverse: For each a E G, there exists a unique element d e G such that ad-e and da e . Prove that each element of a finite group G appears exactly once in each row...
(Abstract Algebra) Please answer a-d clearly. Show your work and explain your answer. (a) Let G be a group of order 4 with identity e. Show that G is either cyclic or a2-e for all (b) Does the result of part (a) generalize to groups of order p2 for any positive integer p? In other words, is it the case that if G is a group of order p2 with identity e, then is either cyclic or a- e for...
10. Let S be a regular surface with E = G = (1 + u2 + U2)2, F = 0 and e = 2=-g,f=0. (a) Find the Gaussian and mean curvatures b)Find the principal curvatures and directions of S 10. Let S be a regular surface with E = G = (1 + u2 + U2)2, F = 0 and e = 2=-g,f=0. (a) Find the Gaussian and mean curvatures b)Find the principal curvatures and directions of S
Please explain why each is true or false (examples would be helpful thank you!) 2. Let vi,.. . ,vn E R", and let A - [vi. .. vn]. Suppose A-b has no solutions for some b. Circle all true statements b) (vi,..., Vn) is linearly independent c) Span(vi,... , vn) f R" d) Span(v1, . . . ,%) = Rk where k 〈 m e) Span(v1, . . . , vn) has dimension k where k < m f) Ax0m...