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Exercise 7.1. 1. Consider two vectors ' = (15,1,5), r = (5,1, 0) in R. Consider...
Problem 1: Let F(, y,) be a function given by F(, y, z) (r2+y)e. Let S be the surface in R given by the equation Fr, y, 2) 2. (a) Find an equation of the tangent plane to the surface S at the point p(-1,1,0) (b)Find the directional derivative -1,1,0) of F(,y,2) in the direction of the unit vector u = (ui, t», t's) at the point p(-1,1,0) - In what direction is this derivative maximal? In what direction is...
4. Determine the timelike, spacelike or lightlike character of the 4-vectors: y" = (0,-1, 1,1) z" = (3,417,100) , ; in Minkowski spacetime in Cartesian coordinates 5. Show that if is a unit timelike vector, it is always possible to find a Lorentz transformation such thawill have components (0,0,0,1). Show that if k" is a null vector, i is always possible to find a Lorentz transformation such that k" has components (1,0,0,1). Hence show that if UV,-0, and U"is timelike,...
14) Consider the parallelepiped D determined by the vectors (2,-1,2), (1,3, 1), and (2,-1,1). Let T(z, y, 2)a-ytz. Consider the integral I - JSsD TdV. Using the Change of Variables Theorem, write I as an integral of the form T(r(r, s,t), v(r, s, t), z(r, s,t))lJ(r,s, t) dr ds dt for a suitable linear change of variables (r, s, t) (, y,z). The Jacobian J(r,s,t) you get here should be a constant function.
14) Consider the parallelepiped D determined by...
45 points) Consider the following vectors in R3 2 0 0 2 2 Vi = 1 ;02 31; V3 = 11:04 = -1 ; Us = 4 2 2 3 (c) Find a basis of R3 among V1, V2, V3, V4, V5, and call it basis V. (d) Is vs Espan{V1, V2, 03, 04}? Explain. (e) Find the coordinates of us with respect to the basis V.
5.4.17. Construct an example using the standard inner product in R to show that two vectors x and y can have an angle between them that is close to /2 without хту being close to 0, Hint: Consider n to be large. and use the vector e of all 1's for one of the vectors.
(1 point) Consider the basis B of R consisting of the vectors and Note: These vectors are written in terms of the standard basis, E. You know the following about e R2: - [ 6 B Find [피e. TE
(1 point) Consider the basis B of R consisting of the vectors and Note: These vectors are written in terms of the standard basis, E. You know the following about e R2: - [ 6 B Find [피e. TE
, A is a linear transformation that maps vectors x in 975 into vectors Let A= 0 -2 1 b in R2 Consider the set of all possible vectors b-Ax, where x is of unit length. What is the longest vector b in this set, and what unit length vector x is used to obtain it? You can use Matlab to save time with the computations, but please justify your answer.
, A is a linear transformation that maps vectors...
Consider the following three vectors of R: (0, 0,-5, 5] ал —D [-2, 2, —4, 5)], 2[0,5,2, -2], a3 There exists a linear equation in the coordinates x, y, z, u whose solution coincides with spanfa1, a2, a3} Determine such an equation (recall an equation must contain an =sign)
4. Consider the equation zy" - 2y' y 0 (a) Explain why r 0 is a regular singular point for the given equation (b) Let ri >r2 be two indical roots of the given equation. Using Frobenius' method, find a series solution n(x)-z"Ση_0Cnz". (c) Find the second solution of the form Σ000 bnXntr2 with boメ0, or i (z) Inr +bn+r2 with the first three nonzero terms of the series with coefficient bn
4. Consider the equation zy" - 2y' y...
n - meraymowa:)--00 [1] [ Let the vectors x, y and z be x = -2 y=1tz= -1 [3] [2] Find r. s and t such that y + z = x O (r, s, t) = (-2, -1, 1) O (r, s, t) = (-2, 1, 1) O (r, s, t) = (-2, 1,-1) (r, s, t) = (2, 1,-1) m Consider the set S = {w,x,y,z} of vectors in R3, S = { 121, Let V = span...