it veetors délfhed above 2) Find the length of vector i-2 3 s 3) Let u--3...
3) Let u33 2, and wE-ls -1] 2 yes, compute them. If any of them is not defined, explain why not. b) Treating u, v', and w' as matrices, are the products v'u, and ne detined? If yes, compute them. If any of them is not defined, explain why not. 4) If A and B are mxn matrices and k and t are real numbers, prove that a) (A +B)k- Ak+ BAk b) A(k +t) Ak+ At Note that to...
3) Let u a) Treating u, v', and w' as vectors, are the inner products u.v', v'.u, and u.w' defined? If yes, compute them. If any of them is not defined, explain why not. b) Treating u, v', and ' as matrices, are the products uv', v'u, and w' defined? If yes, compute them. If any of them is not defined, explain why not.
a1 a12 a13 a14 bi by b 2 Denote row i in matrix A above as vector a' and row i in matrix B as vector bn' for example, a aan a3 aul Similarly, denote column k in matrix A as vector and column k in matrix B as vector b. a) Does matrix C AB exist? If no, explain why not. If yes, write it out expressing each element ck as the inner product of the relevant vectors defined...
Problem 6. Let V, W, and U be finite-dimensional vector spaces, and let T : V → W and S : W → U be linear transformations (a) Prove that if B-(Un . . . , v. . . . ,6) is a basis of V such that Bo-(Un .. . ,%) s a basis of ker(T) then (T(Fk+), , T(n)) is a basis of im(T) (b) Prove that if (w!, . . . ,u-, υ, . . . ,i)...
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. Given the vectors and matrices defined below Tol u= 1 ; w= 1 1-1] [3 A= 1-3 1 11 1 -2 0 Lo io Compute the following matrix: (a) WTA = (b) Au= (c) uw =
4. [-12 Points) DETAILS SCALCET8 12.3.011. If u is a unit vector, find u v and u. w. (Assume v and w are also unit vectors.) u u v = Uw= 5. [-12 Points] DETAILS SCALCET8 12.3.015. Find the angle between the vectors. (First find an exact expression and then approximate to the nearest degree.) a = (7,2), b = (3,-1) exact approximate 6. [-/2 points) DETAILS SCALCET8 12.3.019. Find the angle between the vectors. (First find an exact expression...
please help me with questions 1,2,3 1. Let V be a 2-dimensional vector space with basis X = {v1, v2}, write down the matrices [0]xx and [id]xx. 2. Let U, V, W be vector spaces and S:U +V, T:V + W be linear transforma- tions. Define the composition TOS:U + W by To S(u) = T(S(u)) for all u in U. a. Show that ToS is a linear transformation. b. Now suppose U is 1-dimensional with basis X {41}, V...
Note: We use u, v, w. etc. to denote u. v, w, etc. and R to denote R. Question 1 a. Suppose Then find the value of g 2a) (h +2b) (i +2c) 3b За 2d 3c 2f b. Suppose A and B are n x n matrices with A invertible. Prove that det (A B) det B det A c. Suppose A is a 3 x 3 matrix such that det (A) - Find det d. Suppose A is...
Problem 3. Let V and W be vector spaces of dimensions n and m, respectively, and let T : V -> W be a linear transformation. (a) Prove that for every pair of ordered bases B = exists a unique m x n matrix A such that [T(E)]c = A[r3 for all e V. The matrix A is called the (B,C)-matrix of T, written A = c[T]b. (b) For each n E N, let Pm be the vector space of...