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Question 1. [4 Marks) (a) Find a natural number n such that 2. 1066 + 1492...
6.32 Theorem. If k and n are natural numbers with (k, d(n)) =I, then there exist positive integers u and v satisfving k...
6.32 Theorem. If k and n are natural numbers with (k, d(n)) =I, then there exist positive integers u and v satisfving ku=(n)u The previous theorem not only asserts that an appropriate exponent is always availahle, but it also tells us how to find it. The numbers u and are solutions lo a lincar Diophantine cquation just like those we studied in Chapter 6.33 Exercisc. Use your observations so far to find solutions to the follow ing congruences. Be sure...
Question 1 2(a) Let m>1 be an odd natural number. Prove that 13-5.-(m-2) (- 2-4-6. (-1)...
Question 1 2(a) Let m>1 be an odd natural number. Prove that 13-5.-(m-2) (- 2-4-6. (-1) (mod m) (m-1) (mod m [Hint : 1 i-(m-1 ) (mod m), 3 Ξ-(m-3) (mod ") , . .. , m-2 1-2 (mod m)] 14 (b) If p is an odd prime, prove that Hint: Use Part (a), and rearrange the Wilson's Theorem formula in two different ways
Question 5 [3+(2+4) marks] (a) The matrix A has a repeated eigenvalue of 1 = 2....
Question 5 [3+(2+4) marks] (a) The matrix A has a repeated eigenvalue of 1 = 2. During the solution of the solution (A-21)X = 0, the augmented matrix below appears. Find a basis for the eigenspace for this eigenvalue. Ti 0 -2 07 lo o o lo To ooo (b) (i) Show that if T(x) is a linear transformation from R" to R", that T(0) is the zero vector. (i) Assume that T(u) = 0 only when u = 0....
2. (a) Discuss the experimental evidence for the existence of nuclear shells. (4 marks) (b) Show ...
2. (a) Discuss the experimental evidence for the existence of nuclear shells. (4 marks) (b) Show that the emergy spliting of nuclear shellsby spin orbit coupling is given by 〈 . s),=11%-u . sh-1-1/2 = 2 (21 + 1)2 j 1+1/2 where the symbols have their usual meaning. 4 marks) e) i the degenengy c seil mohe posible values of the total and orbital angular momentum quantum numbers (j and l) respectively. If the shell has even parity identify the...
Exercise 4. [10 marks For every n EN, we define the union and intersection of a...
Exercise 4. [10 marks For every n EN, we define the union and intersection of a collection of n sets A1, A2, ..., An as n UAk = {2 : 3k € {1,...,n} Te Ak} and Ag = {2: Vk € {1,..., n} TE Ax}. k=1 k=1 We define the union and intersection of an infinite collection of sets A1, A2, ...,Ak,... as Ū4x = {2: JkEN 7€ Ax} and ņ 4x = {#: V EN 1 € Ag}. k=1...
Problem 68. Define for any 2 n є N, the set U(n)-(x| 1 x n and...
Problem 68. Define for any 2 n є N, the set U(n)-(x| 1 x n and gcd(z, n-1} For example U(12) 1,5,7,11 Further, define n to be multiplication modulo n. For example 9 10 90 (mod 8) 2. i. Show that o is a binary operation on U/). Hint: Use the lemma from Problem 3 on your take-home exam.) ii. Pick a є N. Prove that a: 1 (mod n) has a solution (some number z є U(n)) if and...
13. (i) For each of the following equations, find all the natural numbers n that satisfy it (a) φ(n)-4 (b) o(n) 6 (c) ф(n) 8 (d) φ(n) = 10 (ii) Prove or disprove: (a) For every natural number k,...
13. (i) For each of the following equations, find all the natural numbers n that satisfy it (a) φ(n)-4 (b) o(n) 6 (c) ф(n) 8 (d) φ(n) = 10 (ii) Prove or disprove: (a) For every natural number k, there are only finitely many natural num- bers n such that ф(n)-k (b) For every integer n > 2, there are at least two distinction integers that are invertible modulo n (c) For every integers a, b,n with n > 1...
do part IV please CD Region only (i) Region 1& 4 Part IV: In the diagram...
do part IV please
CD Region only (i) Region 1& 4 Part IV: In the diagram below, the numbers describe shaded regions in the How would you represent the following regions? I Region 7 only (I Region 1 only. (i) Regions 1 and 4 (1) Region 2 only (iv) Regions 4.5.6,7&8. (U) Regions 2.3.& 4 Part V: An inclusion-exclusion principle problem. Given sets A and B with the following information (AUB) - 40. ( A B) = 6; n(A) -...
1. [10 marks] Modular Arithmetic. The Quotient-Remainder theorem states that given any integer n and a positive integer...
1. [10 marks] Modular Arithmetic. The Quotient-Remainder theorem states that given any integer n and a positive integer d there exist unique integers q and r such that n = dq + r and 0 r< d. We define the mod function as follows: (, r r>n = qd+r^0<r< d) Vn,d E Z d0 Z n mod d That is, n mod d is the remainder of n after division by d (a) Translate the following statement into predicate logic:...
5. (a) The natural spline S(a) passing through the n+ points is a collection of n cubic functions S,(x) defined in the n intervals x, Sxx Suppose that all the points are equally spaced, with unifo...
5. (a) The natural spline S(a) passing through the n+ points is a collection of n cubic functions S,(x) defined in the n intervals x, Sxx Suppose that all the points are equally spaced, with uniform point spacing h=5m-x, for jso,1,..,,n. Ifthe symbols M,, 0, represent the second derivatives of the spline at cach of the mesh points, show that in each intervl-.R-1 For the natural cubic spline (for which M, O and M-=0 ), show that the moments M...
6.32 Theorem. If k and n are natural numbers with (k, d(n)) =I, then there exist positive integers u and v satisfving ku=(n)u The previous theorem not only asserts that an appropriate exponent is always availahle, but it also tells us how to find it. The numbers u and are solutions lo a lincar Diophantine cquation just like those we studied in Chapter 6.33 Exercisc. Use your observations so far to find solutions to the follow ing congruences. Be sure...
Question 1 2(a) Let m>1 be an odd natural number. Prove that 13-5.-(m-2) (- 2-4-6. (-1) (mod m) (m-1) (mod m [Hint : 1 i-(m-1 ) (mod m), 3 Ξ-(m-3) (mod ") , . .. , m-2 1-2 (mod m)] 14 (b) If p is an odd prime, prove that Hint: Use Part (a), and rearrange the Wilson's Theorem formula in two different ways
Question 5 [3+(2+4) marks] (a) The matrix A has a repeated eigenvalue of 1 = 2. During the solution of the solution (A-21)X = 0, the augmented matrix below appears. Find a basis for the eigenspace for this eigenvalue. Ti 0 -2 07 lo o o lo To ooo (b) (i) Show that if T(x) is a linear transformation from R" to R", that T(0) is the zero vector. (i) Assume that T(u) = 0 only when u = 0....
2. (a) Discuss the experimental evidence for the existence of nuclear shells. (4 marks) (b) Show that the emergy spliting of nuclear shellsby spin orbit coupling is given by 〈 . s),=11%-u . sh-1-1/2 = 2 (21 + 1)2 j 1+1/2 where the symbols have their usual meaning. 4 marks) e) i the degenengy c seil mohe posible values of the total and orbital angular momentum quantum numbers (j and l) respectively. If the shell has even parity identify the...
Exercise 4. [10 marks For every n EN, we define the union and intersection of a collection of n sets A1, A2, ..., An as n UAk = {2 : 3k € {1,...,n} Te Ak} and Ag = {2: Vk € {1,..., n} TE Ax}. k=1 k=1 We define the union and intersection of an infinite collection of sets A1, A2, ...,Ak,... as Ū4x = {2: JkEN 7€ Ax} and ņ 4x = {#: V EN 1 € Ag}. k=1...
Problem 68. Define for any 2 n є N, the set U(n)-(x| 1 x n and gcd(z, n-1} For example U(12) 1,5,7,11 Further, define n to be multiplication modulo n. For example 9 10 90 (mod 8) 2. i. Show that o is a binary operation on U/). Hint: Use the lemma from Problem 3 on your take-home exam.) ii. Pick a є N. Prove that a: 1 (mod n) has a solution (some number z є U(n)) if and...
13. (i) For each of the following equations, find all the natural numbers n that satisfy it (a) φ(n)-4 (b) o(n) 6 (c) ф(n) 8 (d) φ(n) = 10 (ii) Prove or disprove: (a) For every natural number k, there are only finitely many natural num- bers n such that ф(n)-k (b) For every integer n > 2, there are at least two distinction integers that are invertible modulo n (c) For every integers a, b,n with n > 1...
do part IV please
CD Region only (i) Region 1& 4 Part IV: In the diagram below, the numbers describe shaded regions in the How would you represent the following regions? I Region 7 only (I Region 1 only. (i) Regions 1 and 4 (1) Region 2 only (iv) Regions 4.5.6,7&8. (U) Regions 2.3.& 4 Part V: An inclusion-exclusion principle problem. Given sets A and B with the following information (AUB) - 40. ( A B) = 6; n(A) -...
1. [10 marks] Modular Arithmetic. The Quotient-Remainder theorem states that given any integer n and a positive integer d there exist unique integers q and r such that n = dq + r and 0 r< d. We define the mod function as follows: (, r r>n = qd+r^0<r< d) Vn,d E Z d0 Z n mod d That is, n mod d is the remainder of n after division by d (a) Translate the following statement into predicate logic:...
5. (a) The natural spline S(a) passing through the n+ points is a collection of n cubic functions S,(x) defined in the n intervals x, Sxx Suppose that all the points are equally spaced, with uniform point spacing h=5m-x, for jso,1,..,,n. Ifthe symbols M,, 0, represent the second derivatives of the spline at cach of the mesh points, show that in each intervl-.R-1 For the natural cubic spline (for which M, O and M-=0 ), show that the moments M...
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