Let a = (1 7 3)(5 94 2) and B= (2 3)(7 4)(5 1 8) be elements of S10. Then, a B is O (1 4)(2758 9 3) O (1 4)( 275 39 8) O (1 4)(2758 3 9) (1 4)(27538 9) the right coset -5 + 22

Q: In Z12, the elements [5] and [7] are None of the choices Associates Irreducibles Units 0 0 0 0

A:

Q: 10. Show that for all n E Z, n² – 3n +1 2.

A: Use mathematical induction to prove the given statement. Check whether the result is true for n=1.…

Q: Let A = {n ∈ Z; n is odd} and B = {n ∈ Z; 3n 2 + 7 is even}. Prove that A = B.

A: We have to prove A is contain in B and vise versa

Q: Consider the sum (3)² + (8)² + (13)2 + · . + (15n – 2)2. | m 1 1 m(т + 1)] and k2 = (m(m + 1)(2m +…

A: Consider S=32+82+132+ . . . .+15n-22

Q: Which of the following express 1 + 2 + 4 + 8 + 16 + 32 in sigma notation? a. 2k-1 b. 24 c. 2k+1 с.…

A: It can be rewritten as,

Q: Let, a1 = 1, a2 = 2, b1 = 0, b2 = 1, for n > 3, an = 2an-1+ bn-1 for n > 2 bn = bn-1+ ɑn-1 express…

A:

Q: Prove that E, k2k = (n – 1)2"+1 + 2 for all n > 1. i=1

A: Note that there is a typo in the question. We need to show that,                            We will…

Q: (b) Let Ho =1, H1 =3, H2 =9, and define Hk = Hk-1 + 3Hk-2 + 3Hk-3 for k23. Show by induction that Hk…

A: We will prove the result by induction  H0=1≤30 H1=3≤31 H2=9≤32 The result is true for k=0,1,2 Assume…

Q: Express in the form & j(n/2-j) (2) In(3

A: As per the bartleby guidelines for more than one part only one has to be solved. Please upload the…

Q: If n^2+6n+11 = x^2+y^2 for positive integer n, x and y prove [xy/2] is composite. Note: [t]…

A: Given :              n2+6n+11 = x2+y2              t ≤ t

Q: Assume that S = Σ(-1)"-¹. 999 9 99 8 O 1000 10 1 (n + 1)5 n=1 n=1 Find the smallest integer N such…

A:

Q: 1 and a1 = 14. %3D Find an explicit formula for az 4aj –1 + 5ar – 2 for k > 2 with ao

A:

Q: Use the permutation and combination formulas to prove the following. +k – 1) (n + k – 1 (b). V k, n…

A: We have to  prove given formula using peemutation and combination

Q: While proving "(n+1)(2n+1) , following will be obtained is an integer for the case n = 6q + 5 which…

A: We have to prove that : n(n+1)(2n+1)6 is an integer for n=6q+5 Substituting n=6q+5 in n(n+1)(2n+1)6…

Q: If (n + 1)(n + 2)an+1x" - nan-1x" = 0, n=1 show that for k = 1, 2, 3, ..., we have 1.3.5... (2k - 1)…

A:

Q: 4. Let, a, = 1, a2 = 2, b, = 0, b2 = 1, for n2 3, an = 2an-1+ bn-1 for n22 b, = bn-1+ an-1 express…

A: Given- Let a1 = 1, a2 = 2, b1 = 0, b2 = 1 for n ≥ 3,an = 2an-1 + bn-1for n ≥ 2,bn = bn-1 + an-1 To…

Q: -xx-9 and y=-x+3 у -9-8-7-6-5-4-3 1 y=x: POINT(S): IN 76 NWA -2 N3456789 -2 -3 -6 -7 -8 23456 -9 +2…

A: We have to find the graph

Q: 1. Find all x € ZZ satisfying each of the following equations. [from # 1, 3.5] a) 5x + 1 = 13 (mod…

A:

Q: 1 1] 050 by expanding 7. 1. Compute det A, where A = %3D -1 7 2 a. On the first row b. On the third…

A: A=711050-172 a). By expanding along first row, we get…

Q: Let f₁=1,₂ = 1 and for all neN,n23,f=f+f2. Prove 1+√5 1-√√5 2 2 that for all neN, S √5

A:

Q: 10. a.If f(t) = tm and g(t) = tn, where m and n are positive integers, show that…

A:

Q: Prove that lor n {k=1 positive unteger every K2K = (n-1)2²+¹+2

A: answer is in next step.

Q: Prove that 3 | 4" – 1 where n E N.

A: To prove 3|4n -1  That is 3 divides 4n -1 for every natural number n.

Q: Find the string that has this generating function: a) (1− x)−3 b) (1+2x)−4 c) 1/(1 −3x)3

A:

Q: Prove that n2+ 4n + 6 E O(n²)

A: Solution: The objective is to prove that the given statement

Q: 9. (a) Prove: If y>0, then there exists ne N such that n-1s y<n. ☆ (b) Prove that the n in part (a)…

A:

Q: 1. Find all z € Z satisfying each of the following equations. (a) 3r = 2 (mod 7) (d) 9r = 3 (mod 5)…

A:

Q: While proving (a*2(2a+1 is an integer for the case a = 6q +1 which of the following will be obtained…

A: We are given with a(a+1)(2a+1)6 We need to substitute a=6q+1

Q: 5. Let A = {n E Z; n is odd} and B = {n € Z; 3n² + 7 is even}. Prove that A = B.

A: Given that              A=n∈ℤ ; n is odd   and   B=n∈ℤ; 3n2+7 is even

Q: 3. Prove that 6|(9" - 3") for all n E Z+.

A:

Q: Find the elements of Z24 of order 8. (Hint: o(1)=24)

A:

Q: Show that 2n is O(3n) but not that 3n is not O(2n)

A: We need to show that 2n is O3n but 3n is not O2n Definition of Big O notation: Let f be a real…

Q: While proving n+2)2n+2) is an integer for the case n = 6q + 5 which of the following will be…

A: Given that  n(n+1)(2n+1)/6 Plug n=6q+5

Q: 1 (b) Prove by induction that (3i – 2)² = ;n(6n² – 3n – 1) for n 2 1

A: We have to prove ∑i=1n3i-22=12n6n2-3n-1 for n≥1 by using mathematical induction.

Q: The number of the element(s) of order 17 in Z17 O Z17 288 16 17 None of them 289

A:

Q: 2 (i) Show that the result 1+ 5+9 +... + (4n – 3) = n(2n – 1) is true %3D for the casen= 1. (ii)…

A: The given question mainly depends on the the sum of the sequence which is in the form of arithmetic…

Q: Let, a1 = 1, a2 = 2, b1 = 0, b2 = 1, for n ≥ 3, an = 2an-1+ bn-1 for n ≥ 2 bn = bn-1 + an-1…

A: The Fibonacci sequence can be defined as a series where a term of the sequence is the sum of the…

Q: Let n € Z. Prove that if 3 /n, then 3 | (2n² + 1).

A:

Q: B. Prove this given 3+7+11+...+(4n - 1) = n(2n +1) using Mathematical induction.

A:

Q: Let a1 = a2 = 1 and suppose an = an-1 + an-2 for n ≥ 3. Prove that a1a2 + a2a3 + · · · + a2n-1a2n =…

A: We have given that , a1 = a2 = 1 Also , an = an-1 + an-2 We need to prove that ,  a1a2 + a2a3 +…

Q: Suppose n E Z. Prove that if n is even, then n² + 7n + 10 is even. (Use Direct Proof)

A: Suppose that n∈Z and let n is even.To show: n2+7n+10 is also even.

Q: For xn = 5n² + 9n³ + 1, an = en = n², prove or disprove: an = O(an) (n → 0)?

A:

Q: 1) Find all associates of (i) [6] in Z10, (ii) [4] in Z5.

A:

Q: Show that 6n – 1 and 12n+1 are relatively prime for any n e Z.

A:

Q: 5. Let A = {n E Z; n is odd} and B = {n € Z; 3n² +7 is even}. Prove that A = B.

A: 5.

Q: ) ) - 1 3 1 3. (a) Without using a calculator, prove that 2 2n +1 Зп + 1 (b) Prove that for all…

A: 3(b) Prove the identity for n = 2. For…

Q: .In Z[V-5], the element 29 is: O Unit O reducible Irreducible None of the choices

A:

Q: Let, a1 = 1, a2 = 2, b1 = 0, b2 = 1, for n > 3, 2an-1+ bn-1 for n 22 bn = bn-1+ an-1 an express an…

A:

Q: 1. Show that 2n n=0 onverges absolutely.

A: Given series: According to the ratio test:

Q: 1. Let A- 3 -7 3 B. e not avell depnedjuhy. 5 -3 -2) If well defined, Compute tice that are. ) Z A +…

A: