5. If ||2|| := VxTx is the usual (Euclidean) length of a vector x E R”,...
Materials: ------------------------------------------------------------------ 9. Let f E (R" where R" is the standard Euclidean space (vector space Rn equipped with the Euclidean scalar product) (i) Explain why there are constants ai,....an R such that 21 ii) Obtain u R" such that f(x)-(1,2), х є R". (ii Explain why the correspondence f u establishedin) is 1-1, onto, and linear so that (R" and R" may be viewed identical. With the usual addition and multiplication, the sets of rational numbers, real numbers, and...
Consider R with the usual Euclidean topology and let I = [0, 1] be the closed unit interval of R with the subspace topology. Define an equivalence relation on R by r ~y if x, y E I and [x] = {x} if x € R – I, where [æ] denotes the equivalence class of x. Let R/I denote the quotient space of equivalence classes, with the quotient topology. Is R/I Hausdorff? Is so, prove so from the definition of...
b) Let a R3 be a vector of length 1. Define H={x E R3 : a·x=0). Here a x denotes the dot product of the vectors a and x. (i) Show that H is a subgroup of R (ii) For λ E R, show that : a·x= is a coset of H in R3. (ii) Is H cyclic? Prove or disprove. b) Let a R3 be a vector of length 1. Define H={x E R3 : a·x=0). Here a x...
5. Let X, Y be ordered bases for the vector space R", and define M to be the transition matrix from Y to X. Let A be the matrix formed by using the vectors of X as the columns. Prove or disprove that AM must be the matrix formed by using the vectors of Y as the columns.
Show that the following are not vector spaces: (a) The set of all vectors [x, y] in R^2 with x ≥ y, with the usual vector addition and scalar multiplication. ------------------------------------------------[a b] (b) The set of all 2×2 matrices of the form [c d] in where ad = 0, with the usual matrix addition and scalar multiplication. I need help with this question. Could you please show your work and the solution.
We will continue to work on the concepts of basis and dimensions in this homework Again, if necessary, you can use your calculator to compute the rref of a matrix 1 (5 points) Recalled that in Calculus, if the dot product of two vectors is zero, then we know that the two vectors are orthogonal (perpendicular) to each other. That is, if yi 3 y3 then the angle between the two vectors is coS 2 The two vectors z and...
C++: vectors. Euclidean vectors are sets of values which represent values in a dimensional field. A 2d vector would represent values in x,y space (an ordered pair of coordinates) and a 3d vector would represent values in x,y,z space (an ordered triplet of coordinates). We define the basic definition of the 2d vector as follows: class Vector2D { public: Vector2D (); Vector2D (double ,double ); double dotProduct(Vector2D& ); friend Vector2D& operator +(Vector2D&, Vector2D&); friend std::ostream& operator <<(std::ostream& o, Vector2D& a);...
Problem 5 (25 points). Let Mat2x2(R) be the vector space of 2 x 2 matrices with real entries. Recall that (1 0.0 1.000.00 "100'00' (1 001) is the standard basis of Mat2x2(R). Define a transformation T : Mat2x2(R) + R2 by the rule la-36 c+ 3d - (1) (5 points) Show that T is linear. (2) (5 points) Compute the matrix of T with respect to the standard basis in Mat2x2 (R) and R”. Show your work. An answer with...
Part B Please 2. Consider a point (xo, y0, 2o) in space and a vector (a, b, c). We can use this vector to define a plane as the set of all points (x,y, z) such that the vector (x - xo, y - yo, z - zo) connecting (z, y,z) with (xo, Yo, 20) is orthogonal to (a, b, c) (the normal vector to the plane). (a) Use a dot product to write the equation of a plane through...
3. Let U E Rnxn be an orthogonal matrix, i.c., UTU = UUT-1. Show that for any vector x E Rn LXTL we have |lU 2 2. Thus the 2-norm of a vector does not change when it is multiplied by an orthogonal matrix. 3. Let U E Rnxn be an orthogonal matrix, i.c., UTU = UUT-1. Show that for any vector x E Rn LXTL we have |lU 2 2. Thus the 2-norm of a vector does not change...