A Transition to Advanced Mathematics
8th Edition
ISBN: 9781285463261
Author: Douglas Smith, Maurice Eggen, Richard St. Andre
Publisher: Cengage Learning
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Chapter 2.3, Problem 4E
Let (3ℤ, +) and (6ℤ, +) be the groups in Exercise 10, and let g be the function from 3ℤ to 6ℤ given by g(x)=x+3. Is g a homomorphism? Explain.
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Chapter 2 Solutions
A Transition to Advanced Mathematics
Ch. 2.1 - The Cayley tables for operations o,*,+, and are...Ch. 2.1 - Let m,n and M=A:A is an mn matrix with real number...Ch. 2.1 - Let be an associative operation on nonempty set A...Ch. 2.1 - Let be an associative operation on nonempty set A...Ch. 2.1 - Suppose that (A,*) is an algebraic system and * is...Ch. 2.1 - Let (A,o) be an algebra structure. An element lA...Ch. 2.1 - Let G be a group. Prove that if a2=e for all aG,...Ch. 2.1 - Give an example of an algebraic structure of order...Ch. 2.1 - Prob. 9ECh. 2.1 - Construct the operation table for each of the...
Ch. 2.1 - Prob. 11ECh. 2.1 - Prob. 12ECh. 2.1 - Suppose m and m2. Prove that 1 and m1 are distinct...Ch. 2.1 - Let m and a be natural numbers with am. Complete...Ch. 2.1 - Complete the proof of Theorem 6.1.4. First, show...Ch. 2.1 - Prob. 16ECh. 2.1 - Prob. 17ECh. 2.1 - Prob. 18ECh. 2.1 - Repeat Exercise 2 with the operation * given by...Ch. 2.2 - Prob. 1ECh. 2.2 - Let G be a group and aiG for all n. Prove that...Ch. 2.2 - Prove part (d) of Theorem 6.2.3. That is, prove...Ch. 2.2 - Prove part (b) of Theorem 6.2.4.Ch. 2.2 - List all generators of each cyclic group in...Ch. 2.2 - Let G be a group with identity e. Let aG. Prove...Ch. 2.2 - Let G be a group, and let H be a subgroup of G....Ch. 2.2 - Let ({0},) be the group of nonzero complex numbers...Ch. 2.2 - Prove that for every natural number m greater than...Ch. 2.2 - Show that the structure ({1},), with operation ...Ch. 2.2 - (a)In the group G of Exercise 2, find x such that...Ch. 2.2 - Show that (,), with operation # defined by...Ch. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Show that each of the following algebraic...Ch. 2.2 - Prob. 17ECh. 2.2 - Given that G={e,u,v,w} is a group of order 4 with...Ch. 2.2 - Give an example of an algebraic system (G,o) that...Ch. 2.2 - (a)What is the order of S4, the symmetric group on...Ch. 2.3 - Find the order of the element 3 in each group....Ch. 2.3 - Find the order of each element of the group S3....Ch. 2.3 - Let 3 and 6 be the sets of integer multiples of 3...Ch. 2.3 - Let (3,+) and (6,+) be the groups in Exercise 10,...Ch. 2.3 - Let ({a,b,c},o) be the group with the operation...Ch. 2.3 - (a)Prove that the function f:1824 given by f(x)=4x...Ch. 2.3 - Define f:1512 by f(x)=4x. Prove that f is a...Ch. 2.3 - Let (G,) and (H,*) be groups, i be the identity...Ch. 2.3 - Show that (4,+) and ({1,1,i,i},) are isomorphic.Ch. 2.3 - Prove that every subgroup of a cyclic group is...Ch. 2.3 - Let G=a be a cyclic group of order 30. What is the...Ch. 2.3 - Assign a grade of A (correct), C (partially...Ch. 2.3 - Find all subgroups of (8,+). (U11,). (5,+). (U7,)....Ch. 2.3 - In the group S4, find two different subgroups that...Ch. 2.3 - Prove that if G is a group and H is a subgroup of...Ch. 2.3 - (a)Prove that if H and K are subgroups of a group...Ch. 2.3 - Let G be a group and H be a subgroup of G. If H is...Ch. 2.3 - Prove or disprove: Every abelian group is cyclic.Ch. 2.3 - Let G be a group. If H is a subgroup of G and K is...Ch. 2.4 - Define f:++ by f(x)=x where + is the set of all...Ch. 2.4 - Assign a grade of A (correct), C (partially...Ch. 2.4 - Define f: by f(x)=x3. Is f:(,+)(,+) operation...Ch. 2.4 - Define on by setting (a,b)(c,d)=(acbd,ad+bc)....Ch. 2.4 - Let f the set of all real-valued integrable...Ch. 2.4 - Prob. 6ECh. 2.4 - Let M be the set of all 22 matrices with real...Ch. 2.4 - Let Conj: be the conjugate mapping for complex...Ch. 2.4 - Prove the remaining parts of Theorem 6.4.1.Ch. 2.4 - Is S3 isomorphic to (6,+)? Explain.Ch. 2.4 - Prob. 11ECh. 2.4 - Use the method of proof of Cayley's Theorem to...Ch. 2.5 - Let (R,+,) be an algebraic structure such that...Ch. 2.5 - Assign a grade of A (correct), C (partially...Ch. 2.5 - Which of the following is a ring with the usual...Ch. 2.5 - Let [2] be the set {a+b2:a,b}. Define addition and...Ch. 2.5 - Complete the proof that for every m,(m+,) is a...Ch. 2.5 - Define addition and multiplication on the set ...Ch. 2.5 - Prob. 7ECh. 2.5 - Let (R,+,) be a ring and a,b,R. Prove that b+(a)...Ch. 2.5 - Prove the remaining parts of Theorem 6.5.3: For...Ch. 2.5 - Prob. 10ECh. 2.5 - Prob. 11ECh. 2.5 - Prob. 12ECh. 2.5 - Prob. 13ECh. 2.5 - Prob. 14ECh. 2.6 - Prob. 1ECh. 2.6 - Let A and B be subsets of . Prove that if sup(A)...Ch. 2.6 - (a)Give an example of sets A and B of real numbers...Ch. 2.6 - (a)Give an example of sets A and B of real numbers...Ch. 2.6 - Prob. 5ECh. 2.6 - Prob. 6ECh. 2.6 - Prob. 7ECh. 2.6 - Prob. 8ECh. 2.6 - Prob. 9ECh. 2.6 - Prob. 10ECh. 2.6 - Prob. 11ECh. 2.6 - Prob. 12ECh. 2.6 - Prob. 13ECh. 2.6 - Prob. 14ECh. 2.6 - Prob. 15ECh. 2.6 - Prob. 16ECh. 2.6 - Use the definition of “divides” to explain (a) why...Ch. 2.6 - Prob. 18ECh. 2.6 - Prob. 19ECh. 2.6 - Prob. 20ECh. 2.6 - For each function, find the value of f at 3 and...Ch. 2.6 - Let A be the set {1,2,3,4} and B={0,1,2,3}. Give a...Ch. 2.6 - Formulate and prove a characterization of greatest...Ch. 2.6 - Prob. 24ECh. 2.6 - Prob. 25E
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- ind Original: 100-200 = 20,000 200400=20,000 80 602=3600 694761 =4 4x1.3225-6.29 4761/3600 = 1-3225 5.29-1058msy 6). The dose to the body was 200 mSv. Find the dose to the lung in mrem? W 200ms 20 2.15 and 8) A technique of 20 mAs, 40 kV produces a f4 Sy Find the dose to the Thyroid inarrow_forwardoriginal ssD 400x (100) 2 400 x (14)=100 34 10or (2)² = 100 × (0-85) = 100 x = 72.25 100x 40 72.25 =36.13 500 36.13 13.84 O. 7225 12x13.84≈ 166.08mAs 10) The dose of a radiograph was 100 mSv with a technique of: 10 mAs, 180 kV at 200 cm and tabletop. If the technique is changed to: 20 mAs, 153 kV at 100 cm using a 5:1 grid then find the new dose in rem to the Lungs. 11) A radiographic technique produces an exposure index of EI= 300 and TEI=600 at a source- to-image receptor distance (SID) of 200 cm, 100 kV, 5:1 grid using 10 mAs. If the technique is changed to 100 cm and 85 kV and 5 mAs with table top find the new exposure index? What is the value of DI? 10arrow_forward0. 75 and 34 KV arved fromise to 75 halfed NAME Genesis Ward 0 mAs is 40 #2). A technique involves 150 mAs, 40 kV and produces an intensity of 2 R. are gone down KV C15%! In = 200% Find the new intensity in mGya, using 300 mAs and 46 kV? =100 206a 150mAS 40KV 2R kv 150 is so divide 00 mA, 200 alue of 100. Boomts 46KY 4). A technique is taken with 100 mA, 200 ms, 60 kV and produces 200 mSv.arrow_forward
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- 1000 x= 800mGy to body X= = rad 7). If EI=300, TEI=500 with mAs = 20 and you want to decrease the kV by 15% then 0.8 Gy what is the new mAs value to set DI=0? =0% 100-00 Dorad 8) A te dose of rem w kV? 2 tom i sv 4sv 48rem to thyr. KV+ I formula K In = Fox2 kV (1979) (48 rem = 8.2 = 16. SVx 100 160oren-body 1600.0.03=X I M M Earrow_forward8 If f(x + y) = f(x)f(y) and Σ f (x) = 2, x, y = N, x=1 where N is the set of all natural number, then the f(4) value of is. f(2)arrow_forwardvide 0. OMS its 150MAS 40k 300mts 46KV 4). A technique is taken with 100 mA, 200 ms, 60 kV and produces 200 mSv. Find the intensity in rem when this technique is changed to 200 mA, 400 ms, 69 kV? nd 5). The dose to the body was 200 mSy. Findarrow_forward
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