Let A, BCR x R defined by A= {{n,m)|n, m € N, 0 < 2m(n + 1) – 3 < 5}, and B = {(1,1), (1,2), (2, 1), (2, 2), (3, 2)}. Then ANB is O {(2, 1), (1, 2)} O {(1,1), (2, 1)} O {(1,1), (1, 2)} O {(1, 1), (1, 2), (2, 1)}

Q: 1. Let A = {a, b, c}, B = {1,2,3}, C = {x, y, z, w}, D = {4,5, 6}. Let the functions f : A → B, g :…

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Q: The value(s) of x that satisfy In(x² + 1) – 2 In(x) = In(16) – In(8) are/is

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Q: let X1, X2, ..... XN Find UMVUE for 0² N(0,1) 0 € (-∞0,00)

A: Dear student, If you find this solution helpful please upvote ? it.

Q: Assuming that gcd(a , b) = 1, prove the following: (b) gcd(2a +b, a +2b) = 1 or 3.

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Q: var(û), if û = X1 + a jg X (n-1) + (X2 ++X(n-2) + 3 6X(m-1) + 증 .. 2(n-3) 4. 29n 256(п-3) 29…

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Q: 1. (10 points) Consider the set 2020n + 2021 S = :n = 1,2, 3, n+1 Find sup(S) and inf(S) and…

A: Since you have asked multiple questions, we will answer the first one. If you want other questions…

Q: Show that z / [(z-1)(z-3)] = -3 Σ [(z-1)n / 2n+2] - [1 / (2(z-1))] for 0 < |z - 1| < 2.

A: by using techniques of partial fractions and series expansion of 1/(1-x)

Q: Expand а) 1 f(2) = (z – 2)(z+ 1) about z = 2.

A: We have fz=1z-2z+1 Now, using partial fraction decomposition we get for constants A and B:…

Q: -1 2 1 Let A Compute AAT and AT A. 1 0 1 1 -1

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Q: Prove VnEN, + + + 1 2 3 1 + ≥1+ 2n 1 2n n 2

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Q: Let f(x) = a,x" + a, p* + ...+ a, E Z[x] and a, + 0. Prove that if r and s are relatively prime…

A: It is given that,  f(x) = anxn + an-1xn-1 +...+ a0 ∈ ℤx  with an ≠ 0. Also, it is given that r and s…

Q: G=(R,+), H=(Z,+), then [G:H] is O 2 O None of them O Infinite O 1

A: We have to solve given problem:

Q: 15. Show that if f: A- 1 f(GnH)=f(G) B and G, H are subsets of B, then f-¹(GUH)=f(G) Uf (H) and nf…

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Q: (2) Suppose that G, C Zn-r. Then prove that G,-1C Zn-r+1

A: We prove that

Q: 3 18 13 2 13 1 Let A = 0 0 0 Find det (15A-¹)

A: Given that a matrix A and we find det(15A-1).

Q: •ffe -32²-3y² dA; R= {(x, y)\x² + y² ≤ 4, x ≤ 0,y>0} R 4. (Section 16.3) Evaluate

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Q: Which of the following must be true? ) Let V = {(x, y) : x, yeR}For any (x1,Y1), (x2, Y2)eV and c…

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Q: Let v be the set o all pairs of positive numbers (X,y) With two operations + and C denned as: (x1,…

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Q: x₁ + x₂ + +x. Prove that -x₁)(1+x₂)... (1+x) ≤1+S+ ... S² S³ + 2! 3! +...+ uS - n!

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Q: Evaluate : | [6x-1+ 2 e2 + 4" – 9] dæ In(x)° + e2" + In(4) 9x + C, Where C is the parameter 4* O…

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Q: 7. ) Let f: N→ Z with f(n)=n+4. Let A = {1,2,3} and B = {1 € Z \ I <10). Use these to find the…

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Q: U is a neighborhood of x0 and U ⊂ V, The V is a neighborhood of x0. (2) If U1 ...., U2 are…

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Q: Let x, y E N, determine each of following statemen is true or false (N means Natural number, natural…

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Q: Q. Let X = {m, n}, and = {ø, X, {m},{n}}. %3D Define the function un: -[0, 00) by 3 if n e A 0 if n¢…

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Q: let it be T=11,2,3 } S:la,b,c] Proved P(TNS)E P(S)NP(T)

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Q: (b) Show that xE R, x2 - 4x + 5 > 0.

A: As this is a multiple question type, only first question is to be solved, according to the Bartleby…

Q: - Let A = {1, 2, 3, .., 103. Consider f:P(A) → N given by f(B) = |B|. That is, f takes B subset of A…

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Q: Let fi = 1+2x + 2x² + 3x³, f2 = 2+3x + 3x² + 4x³, f3 = 3+ 5x + 5æ² + 6x³ and 9i =1+x+x², g2 = 1+x…

A: Given polynomials are; f1=1+2x+2x2+3x3,f2=2+3x+3x2+4x3,f3=3+5x+5x2+6x3…

Q: 2. Let U = {a + bx + cx2 + d³ e P3 (R) | a- 6+d3D0}, and let W = {a + bx + ca? + dx³ e P3(R)| a + 2c…

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Q: 2. Let A = {a, b, c}, B = {x, y, z}, C = {r, s,t}. Let f : A → B and g : B → C be defined by: f =…

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Q: Let f(x, y) = In(x²y), where a = s² + t² and y = 2s + 3t. %3D Which of the following is a correct…

A: Given,           f(x,y) = lnx2y3,  where x = s2 + t2 and y = 2s + 3t

Q: 1. Let A={1,3,5,7}. Let f:A→Z be the function f={(1,2),(3,4),(5,6),(7,8)}. Let g:Z→Z be defined by…

A: Given, Set A=1,3,5,7 and a two functions f and g as follows, f: A → Z by f=1,2,3,4,5,6,7,8 g: Z →Z…

Q: Show that p(y]x, z)p(x]z) p(y|z) p(x]y,z) = Show that P(x|z) = > P(x]y, z)P(y|z) %3D Show that…

A: If A and B two events then by definition of conditional distribution, p(A|B) = p(A∩B)p(B) We have to…

Q: 4. (a) Let Q = : a, b e Z, b 0, gcd(a,b) = 1} be the set of rational numbers. An integer p is called…

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