Let a and b be elements of a group.  If |a| and |b| are relatively prime, show that intersects = {e}.

Q: Let p be an odd prime number. Let Dp be the diehedral group of order 2p. Find |Aut (Dp)|.

A: Dp is the Diehedral group of order 2p, where p is an odd prime number.  We have to find AutDp.

Q: Let 3 denote the centre of a group G. then show that a 3 iff N(a) = G. also show that if G is…

A:

Q: Let X,Y be cyclic groups of order 2,3 respectively.  Find the orders of the elements of X×Y.

A: Let X, Y be cyclic groups of order 2,3 respectively then we have to find the   the orders of the…

Q: Consider the groups A = Z3 © Z9 and B = Z27. Prove that these two groups are not isomorphic.

A: The two groups G and G' are isomorphic iff there exists an onto isomorphism between them .

Q: Let G be the set consisting of the following matrices: (6 9) (6 ) ( ) -1/2 v3/2 V3/2 1/2 -1/2 V3/2)…

A:

Q: If H and K are subgroups of G and g belongs to G, show that g(H N K) = gH n gK.

A: Given: H and K are subgroups of G and g.To prove: gH∩K=gH∩gK

Q: Given that A and B is a group. Find out if : A→B is a homomorphism. If it is a homomorphism, also…

A:

Q: Let G be a group and let g, h ∈ G. Show that | gh | = | hg |. Remember that | a | denotes the order…

A:

Q: Let C be a group with |C| = 44. Prove that C must contain an element of order 2.

A:

Q: Let X, Y be cyclic groups of order 2, 3 respectively. Find the orders of the elements of XxY.

A: Let X, Y be cyclic groups of order 2,3 respectively then we have to find the   the orders of the…

Q: Let a be a group element such that |a| = 48. For each part, find adivisor k of 48 such thata.…

A: Given: a be a group element such that a=48.We need to find divisors k of 48 such that the subgroups…

Q: (4) Let (G, *) be a group and assume that z, a, b € G. Let also that c = x *a*r¹ and d = x * b*x-¹.…

A: Let  be  a  group  and  assume  that Suppose  that Since,  and  is  a  group, it follows  that…

Q: let x and g be elements of a group G. show that x and gxg-1 have the same order. now prove that xy…

A: Hence, proved.Explanation:Step 1:To prove that x and gxg-1  have the same order for any elements x…

Q: Calculate G/H for G = V, the Klein’s four-group and H = (b).

A: The Klein four-group is defined by the group presentation V=a, b| a2=b2=ab=c2=e Given: G=e, a, b, c…

Q: Let G be a group. Assume a and b are elements of G and set H₁ = and H₂ =. Assume |H₁| = 21 and |H₂|…

A:

Q: 16. Let G be a group and let g and h be in G. Show that . - as defined in #15.

A: Given: G is a group, g,h∈G, ϕg:G→G is a function defined as ϕg(x)=gxg-1 To prove: ϕg∘ϕh=ϕgh Let x∈G…

Q: Given that A and B is a group. Find out if : A→B is a homomorphism. If it is a homomorphism, also…

A:

Q: B A F (Ε

A:

Q: Find the orders of each of the elements of U(14). Show that it is cyclic and find all its…

A: Given :-  The orders of each of the elements of U14. To Determine :- It is cyclic and all its…

Q: = n and o(b) = m Let G be a group and suppose a, b E G satisfy ab = ba. Assume that o(a) : with (n,…

A: Given G is a group, such that a, b∈G satisfy ab=ba. Also, we have oa=n and ob=m with n, m=1.   To…

Q: Let α = (12)(34) and β = (24). Show that the group generated by αand β is isomorphic to D4.

A: It is given that α=1234 and β=24. It is required to show that the group generated by α and β is…

Q: Exercise 1) Consider the group (S3, 0) and H= {e, fs). Prove that HS3. 2) Consider the group (Z.)…

A: Note: Hi! Thank you for the question as per the honor code, we’ll answer the first question since…

Q: Help: Let G and G' be groups with identity elements e and e' respectively and let f:G goes to G' be…

A: Let G and G' be groups with identity elements e and e' respectively and let f:G goes to G' be a…

Q: Exercise2: Let T = {(a, b) | a, bE R\{0}} and * defined on T E %3D (a, b) * (c, d) = (ac, bd) for…

A: Yes it is group. Let  x1=a1,b1 , x2=a2,b2 and x3=a3,b3belong to T. Then, x1*x2=a1,b1*a2,b2=a1a2,b1b2…

Q: Let (G, ★) and (G,o) be groups, with respective identity elements e and ē. Suppose there is a…

A:

Q: 3. Let {: ) G = | a,be Q, a² +b² # 0 26 a Determine if G is a group with respect to matrix…

A: Satisfy all four properties for proving G be a group.

Q: Write the three-dimensional matrices that represent each of the operations of the point group D2n…

A: The dihedral group D2n is defined by the collection of symmetries of a n-sided regular polygon. So…

Q: Decide if each of the following sets H is a subgroup or not of the group G = R XR, where the group…

A:

Q: Q4: Let A and B be subgroups of a group to that A1 = 4 and 1B1-5- Show that AnB = {e}

A: Let A and B be the two subgroups of Group GSuch  thati.e., the Order of subgroup A is 4 and B is 5…

Q: 1.)Integrate: ∫(x+1)(x+2)^6dx Group of answer choices a.)(2/56) (7x + 6)(x + 2)7 + C b.)(2/56)…

A:

Q: (1) Let C₁ = denote the cyclic group of order n. (a) a. Show that C₂ C₁ is a cyclic group. (b) Show…

A: Direct sum of the cyclic group

Q: Let G = Z, be the cyclic group of order n, and let S c Z, \ {0}, such that S = -S, \S| = 3 and (S) =…

A:

Q: Find order of all the elements of the Group = {1,-1, i, -i}. The binary operator * is defined as a *…

A: 1 is identity . so order of 1 is equal to 1.

Q: Let G and H be two groups. Let a € G have order n and 6 € H have order m. Show that (a, b) € G x H…

A: G and H are two groups.a∈G have order n and b∈H have order m.

Q: 1. Prove or disprove that each of the cises 52 of Section 3.1 is cyclic. a. Z2 × Z3

A:

Q: Show that the set S = (1, i, - 1, -0 is an abelian group with respect to the multiplication

A:

Q: The groups Z/6Z, S3, GL(2,2), and De (the symmetries of an equilateral triangle) are all groups of…

A: