2. Let x be an element of a convex set S. Assume that x1 = x + €ip E S and x2 = x – €2P E S, where p # 0 and e1, €2 > 0. Prove that x is a convex combination of x1 and x2. That is, prove that x = ax1 + (1 – a)x2,

Q: (c) For the set A = {[0], [6]} ≤ Z12 determine the set U = h(A). Then for the set UC Z18 determine…

A: In group theory, sets like Z12​ and Z18​ are examples of cyclic groups under addition modulo 12 and…

Q: Prove that P(XY) = P(X)n P(Y) for all sets X and Y.

A:

Q: 1. (a) Consider the set S {n(-1)" : n e N}. Verify the existence or otherwise of Min(S) and Max(S).…

A: given that (1) (a)                                    S=n(-1)n:n∈N=2k(-1)2k:n=2k,…

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 :…

A:

Q: (e) For the set W = {[1], [3], [13]} ≤ Z18 determine the set C = h¯¹(W). Then for the set C C Z12…

A: Modulo function

Q: (a) Is the set S = {1 + x + x2, 1 − x3,  x + x2 + x3,  x3} ⊂ P3 linearly independent? If so, prove…

A:

Q: In this question we prove that certain sets are not convex. For each of the following sets, give the…

A:

Q: 2. Let X1 and X2 be sets. Define functions T1 : X1 × X2 → X1, T2 : X1 × X2 → X2 by T| (X1, X2) = x1,…

A:

Q: Consider the set S = {x² + 1, 2x − 2, − x² + x}. The set S spans P2. If t(x) = = 2x² 16x + 10 € P₂,…

A:

Q: 5. Let V₁, V2, V3, and v4 be such that {V1, V2, V3} is linearly dependent and {v2, V3, V4} is…

A:

Q: Let vị = V2 = V3 V4 and -[1} Confirm that p = V1 +v2 + ¿v3 + ¿V4 and vị – V2 + V3 – V4 = 0. Jse the…

A:

Q: Prove that B = (0,1) is NOT a compact set.

A: To prove that (0,1) is not a compact set.

Q: Consider the set S = {2x² + 1, 2x – 4, 2x + x}. The set S spans P2. If t(a) — 6а? + 6х — 15 € Ра,…

A:

Q: Let A and B be two measurable sets prove that if ASB then BIA is measurable and m(B\A)=m(B)-m(A)

A: The given problem is related with measure theory. Given that A and B are two measurable sets.  We…

Q: 1. Let {v₁,..., Vn} be a linearly dependent set. Prove that there exists some j with 1 ≤ j<n such…

A: Suppose that    be a  linearly  dependentset.Then there exists some   such that where  are  scalars…

Q: Let W = (0, 1, 3}, X = {1, 3, 5), Y = (3, 4} and Z = {(1, 2), (3, 4), (1, 3),(2, 4). Compute (X x Y)…

A: The given problem is to find the Cartesian product of given sets and verify the Cartesian product…

Q: Solve number 1

A:

Q: Exercise 3.3.16. Prove or find a counterexample to the following statement. Let A, B and C be sets.…

A: Solution of the question is given below.

Q: Let An denote the number of lattice paths from (0,0) to (n, n) that do not pass above the diagonal y…

A: As per the norms, we will be answering the first question. If you need an answer to others, then…

Q: Find a topology in which the point x = 5 is an open set.

A:

Q: Exercise 3.3.20. Let A and B be sets. Suppose that BCA. Prove that AxA-BxB = [(A-B) XA]U[AX (A -…

A: We have B⊆A  first we prove that  AxA-BxB⊆  [Ax(A-B)]∪[(A-B)xA]   Then we prove that  AxA-BxB ⊇…

Q: 4.4. Let S be a nonempty set. Suppose that to each ordered pair (x, y) E S x S a nonnegative real…

A:

Q: 8. Let A = {2, 4} and B = {1, 3, 5} and define relations U, V, and W from A to B as follows: For all…

A: In the given question we have to draw the arrow diagram of the relation U,V and W and we have to…

Q: 2. Let S = {0, 1, 2, 3, 4} and T = {0, 2, 4). (a) How many ordered pairs are in S × T? T × S? (b)…

A: 12. Given that,                    S=0, 1, 2, 3, 4  &amp; T=0, 2, 4.

Q: 2. Answer the questions with Yes or No, and then explain why yes or why not. Justify your answer. a)…

A: Answer :

Q: Describe the set {TER²: doo (r,(0, 0)) = 1}.

A: To Describe: the set {x∈ℝ2: d∞(x,(0,0))=1}.

Q: Let f(x) := x² for x∊R, and let E := {x∊R : -1≤x≤0} and F := {x∊R : 0≤x≤1}. Find the sets E\F and…

A: Given, f(x) := x² for x∊ R,  E := {x∊ R : -1≤x≤0} and F := {x∊ R : 0≤x≤1}.

Q: A and B be two sets, each one of them having a minimum. Assume that A n B is not ty. Then An B has a…

A:

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…

A: