7.p+q=n
This is the false statement since if 2vectors are orthogonal then each consist of n elements
8.none of these
e, none of these 7. Let {1,..., up} be an orthogonal basis for a subspace W...
5. Exercise A5: Given {ui,..., up an orthogonal basis for a subspace W of R". Let T: RnR be defined by T(x)prox, the projection of x onto the subspace W (a) Verify that T is a linear transformation. (b) What is ker(T), the kernel of T? c) What is T (R"), the range of T?
1. Let W CR denote the subspace having basis {u, uz), where (5 marks) (a) Apply the Gram-Schmidt algorithm to the basis {uj, uz to obtain an orthogonal basis {V1, V2}. (b) Show that orthogonal projection onto W is represented by the matrix [1/2 0 1/27 Pw = 0 1 0 (1/2 0 1/2) (c) Explain why V1, V2 and v1 X Vy are eigenvectors of Pw and state their corresponding eigenvalues. (d) Find a diagonal matrix D and an...
Q6. Let W be the subspace of R' spanned by the vectors u. = 3(1, -1,1,1), uz = 5(–1,1,1,1). (a) Check that {uj,uz) is an orthonormal set using the dot product on R. (Hence it forms an orthonormal basis for W.) (b) Let w = (-1,1,5,5) EW. Using the formula in the box above, express was a linear combination of u and u. (c) Let v = (-1,1,3,5) = R'. Find the orthogonal projection of v onto W.
(1 point) Are the following statements true or false? ? 1. If z is orthogonal to uị and u2 span(uj, u2), then z must be in and if W = Wt. ? 2. For each y and each subspace W, the vector y – projw(y) is orthogonal to W. ? 3. If y is in a subspace W, then the orthogonal projection of y onto W is y itself. ? 4. The orthogonal projection p of y onto a subspace...
(3 points) Let W be the subspace of R spanned by the vectors 1and 5 Find the matrix A of the orthogonal projection onto W A- (3 points) Let W be the subspace of R spanned by the vectors 1and 5 Find the matrix A of the orthogonal projection onto W A-
All vectors and subspaces are in R”. Mark each statement True or False. Justify each answer. Complete parts (a) through (e) below. a. If W is a subspace of R" and if y is in both W and wt, then y must be the zero vector. If v is in W, then projwv = Since the wt component of v is equal to v the w+ component of v must be A similar argument can be formed for the W...
Let w be a subspace of R", and let wt be the set of all vectors orthogonal to W. Show that wt is a subspace of R" using the following steps. a. Take z in wt, and let u represent any element of W. Then zu u = 0. Take any scalar c and show that cz is orthogonal to u. (Since u was an arbitrary element of W, this will show that cz is in wt.) b. Take z,...
(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...
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 point) Find the orthogonal projection of U = onto the subspace W of R4 spanned by --0-0-1 Uw =