please give very detailed explanation 3. For each expression a modn, find an integer b such that b = a mod n and o <b<n. (a) 77 mod 12. (b) -96 mod 7. (c) 1001 mod 3.
-. Show that if x ~ Unif(a, β) and μ-E(X) (so μ-(a + β)/2), then for integers r > 0, 0 r odd 12
Find all integers x, y, 0 < x, y < n, that satisfy each of the following pairs of congruences. If no solutions exist, explain why. (a) x + 5y = 3(mod n), and 4x + y = 1(mod n), for n = 8. (b) 7x + 2y = 3(mod n), and 9x + 4y = 6(mod n), for n=5.
Q 3 a) Let n > 2 be an integer. Prove that the set {z ET:z” = 1} is a subgroup of (T, *). Show that it is isomorphic to (Zn, + mod n). b) Show that Z2 x Z2 is not isomorphic to Z4. c) Show that Z2 x Z3 is isomorphic to 26.
1. Recall the following theorem. Theorem 1. Let a, b, m,n e N, m, n > 0 and ged(m,n) = 1. There erists a unique r e Zmn such that the following holds. x = a (mod m) x = b (mod n) please show that such solution is unique.
Consider the following recursive definition: if n=1 F(n)= | Fin - 1) +2 if n > 1 (O What set describes this definition? OOOO The set of nonnegative odd integers The set of even integers The set of nonnegative integers The set of odd integers none of the above The set of nonnegative even integers
Problem 3 1. Find the values of (379) and (4725). 2. Prove that for any m > 2, (m) is even. 3. Prove that if (371) - 36(n) then 3|n. Hint: Try proving the contrapositive. 4. Suppose that a =b (mod m), a = b (mod n), and ged(m, n) = 1. Prove that a = b (mod mn). 5. Use Euler's Theorem and the method of successive squaring to find 56820 (mod 2444). That is, find the canonical residue...
Given H(z) as shown, determine the response y(n) function 6In-3] for all n >= 0) of the system to the discrete impulse H(z) 3z/ (z2 + 2z 2)
(a) Use mathematical induction to prove that for all integers n > 6, 3" <n! Show all your work. (b) Let S be the subset of the set of ordered pairs of integers defined recursively by: Basis Step: (0,0) ES, Recursive Step: If (a, b) ES, then (a +2,5+3) ES and (a +3,+2) ES. Use structural induction to prove that 5 (a + b), whenever (a, b) E S. Show all your work.
We are given the following information about a signal x(t) a) t) is real and odd. b)x(t) is periodic with period T 2 and has Fourier coefficients a a,-0 for Ikl > 1. d) 2 Identify two possible signals that satisfy these properties.