The polynomials 1-1, (1-1)², and (x-1)³ span R3[1]. I
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- Determine whether the set R2 with the operations (x1,y1)+(x2,y2)=(x1x2,y1y2) and c(x1,y1)=(cx1,cy1) is a vector space. If it is, verify each vector space axiom; if it is not, state all vector space axioms that fail.Let S={v1,v2,v3} be a set of linearly independent vectors in R3. Find a linear transformation T from R3 into R3 such that the set {T(v1),T(v2),T(v3)} is linearly dependent.Which vector spaces are isomorphic to R6? a M2,3 b P6 c C[0,6] d M6,1 e P5 f C[3,3] g {(x1,x2,x3,0,x5,x6,x7):xiisarealnumber}
- Let V and W be vector spaces, let T : V --> W be linear, and let { w1 , w2 , ... , wk} be a linearly independent set of k vectors from R(T). Prove that if S = {v1,v2 , .. . ,vk} is chosen so that T(vi) = Wi for i = 1, 2, ... , k, then S is linearly independent.Let V is finite vector space and suppose that V=internal direct sum of U and S1. Also V=internal direct sum of U and S2. What can you say about the relationship between S1and S2? What can you say if S1 is a subset of S2?Let P2 be the vector space of all polynomials of degree ≤ 2 with coefficients in R, andS= {1 + 2x, 1 + 3x + 5x^2 , 4x + 5x^2 } .Is Span(S)= P2?
- 2-What is the size of the vector space consisting of polynomials of degree not exceeding n? A) 0 B) 2n+1 C) n-1 D) n+1 E) na.) Let u = (2, 4) and v = (−3, 5). Compute u + v. b.) Let u = (2, 4) and k = 7. Compute ku. c.) Let u = (2, 4), v = (−3, 5) and k = 7. Compute k(u + v). d.) Is V a vector space with the stated operations? e.) If V is not a vector space, which property fails to hold?7.4 Let F(x,y,z)=(−7xz2,9xyz,−2xy3z)F(x,y,z)=(−7xz2,9xyz,−2xy3z) be a vector field and f(x,y,z)=x3y2zf(x,y,z)=x3y2z.∇f=(∇f=( , , )).∇×F=(∇×F=( , , )).F×∇f=(F×∇f=( , , )).F⋅∇f=F⋅∇f=
- Recall that we say that a random variable X is in the vector space L^2 if it has finite second moment, EX^2 In this problem we will understand a bit better the geometry of the vector space L^2(1) Show that ||X||_2 = √EX^2 is a normSuppose V is finite-dimensional and U and W are subspaces of V with W^0 ⊂ U^0. Prove that U ⊂ W.3. (a) Let S = {v1, . . . , vn} be a linearly dependent subset of a vector space V , and let vn+1 bean element of V which is not an element of S. Prove/disprove: S∪{vn+1} is linearly dependent.(b) Let T = {v1, . . . , vn} be a linearly independent subset of a vector space V , and letvn+1 ∈ V \ T. Prove that T ∪ {vn+1} is linearly dependent if and only if vn+1 ∈ span(T)