Please solve it with clear explanation including the theorem
Please solve it with clear explanation including the theorem 8.(1) Let w be any nonzero vector...
please answer to all parts 4. In each case, determine whether W is a subspace of the F-vector space V. (a) F=Q, V =R2, and W = Z?. (b) F=R, V = RP, and W = {(x,y) ER?:zy >0}. (c) F=R, V = R', and W = {(x,y,z) € R3: x > 0, y > 0, 2 >0}. (d) F=R, V = C, and W = {(x, y, z) ECS:x + 2y + iz=0}. (e) F = Q, V =...
Will rate for prompt and correct answers with clear and short explanation, tyvm. 1. Let U, V, and W be subspaces of Rº defined by U = {(21,19, 13, 14): T1 = 12, 13 = ra} V = span({(1,0,0,1),(0,1,1,0)}) W = {0, 1, 0,y): 1, Y ER}. (a) Is U+V a direct sum of U and V? (b) Is V +W a direct sum of V and W?
(6) In R3, let W be the set of solutions of the homogeneous linear equation r + 2y +3z 0. Let L be the set of solutions of the inhomogeneous linear equation (a) Define affine subspace of a vector space. (b) Prove that L is an affine subspace of R3 (c) Compute a vector v such that L = v + W (6) In R3, let W be the set of solutions of the homogeneous linear equation r + 2y...
Problem 3. Let V and W be vector spaces, let T : V -> W be a linear transformation, and suppose U is a subspace of W (a) Recall that the inverse image of U under T is the set T-1 U] := {VE V : T(v) E U). Prove that T-[U] is a subspace of V (b) Show that U nim(T) is a subspace of W, and then without using the Rank-Nullity Theorem, prove that dim(T-1[U]) = dim(Unin (T))...
please proof and explain. thank you 1. Let W be a finitely generated subspace of a vector space V . Prove that W has a basis. 2. Let W be a finitely generated subspace of a vector space V . Prove that all bases for W have the same cardinality.
a. Let W and X both be subspaces of a vector space V. Prove that dim(WnX) > dim(W) + dim(X) - dim(V) b. Define a plane in R" (as a vector space) to be any subspace of dimension 2, and a line to be any subspace of dimension 1. Show that the intersection of any two planes in R' contains a line. c. Must the intersection of two planes in R* contain a line?
please help me with part a) (1 point) Let V be the vector space P3 [x] of polynomials in x with degree less than 3 and W be the subspace W - span((-4)+ 5x2,4 +5x 7x2 a. Find a nonzero polynomial pr) in W b. Find a polynomial q(x) in V\ W. qx)1-2xA2+5
Hi, can you please solve this and show work. Let W be a 2-dimensional subspace of R'. Recall that the function T:X → projw X, mapping any vector to its projection onto W is a linear transformation. Let A be the standard matrix of T. a) Explain why Ax = x for any vector x in W. Show that Null(A) = Wt. What is dim(Null(A))?| (Hint: Recall that, for any vector x, X - projw x is orthogonal to W.)...
1 Problem 4. Let V be a vector space and let U and W be two subspaces of V. Let (1) Prove that ifU W andWgU then UUW is not a subspace of V (2) Give an example of V, U and W such that U W andWgU. Explicitly verify the implication of the statement in part1). (3) Proue that UUW is a subspace of V if and only if U-W or W- (4) Give an example that proues the...
(1 point) Are the following statements true or false? ? 1. The best approximation to y by elements of a subspace W is given by the vector y - projw(y). ? 2. If W is a subspace of R" and if V is in both W and Wt, then v must be the zero vector. ? 3. If y = Z1 + Z2 , where z is in a subspace W and Z2 is in W+, then Z, must be...