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    Linear Algebra

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    Finding Eigenvalues Matrix Index

    Let Tn = (tij) denote the nxn matrix such that for each index i, tji = a and tij = b for j not = to i. Verify that Tn = (a-b)In + bEn where En is the nxn matrix of all 1's. Find the determinate and the eigenvalues of Tn.

    Solving for Eigenvalues

    A certain 4x4 real matrix is known to have these properties: 1) Two of the eigenvalues of A are L1= 3 and L2= 2. 2) The number 3 is an eigenvalue of the matrix A + 2I. 3) det. A = 12. What are the other 2 eigenvalues of A and what is the characteristic polynomial of A, At, and A-1?

    Ellipsoid to canonical form

    Problem attached. (a) Find the shortest and the largest distance from the origin to the surface of the ellipsoid. (b) Find the principal axes of the ellipsoid.

    Eigenvector Estimation : Inverse Power Method

    Please see the attached file for the fully formatted problems. Use the inverse power method to estimate the eigenvector corresponding to the eigenvalue with smallest absolute value for the matrix -1 -2 -1 A= -2 -4 -3 2 2 1 where X0= [1,1,-1]. In finding A-1 use exact arithmetic with fractions. ln applyi

    Normal subgroups proofs

    Let X be a nonempty subset of a group G. If G = <X> and H is a subgroup of G, show that H is the normal subgroup of G if and only if x^-1Hx contained in H for all x belonging to X. ALSO show that <X> is normal in G if and only if gXg^-1 contained in <X> for all g belonging to G.

    Cosets Groups

    Note: C means set containment (not proper) |G:H| means index of subgroup H in G U means union of sets E means belonging to Let K C H C G be groups. Show that both |G:H| and |H:K| are finite if and only if |G:K| is finite, and then |G:K| = |G:H||H:K|. Hint: if |H:K| = n, let Kh1, Kh2, ..., Khn be the distinct cosets of

    Subgroups Prime Constraints

    "C" means set containment (not proper set containment) and "T" means intersection of sets If H and K are subgroups of a group and |H| is prime, show that H C K or H T K = {1}

    Cosets and Subgroups

    Let G = RxR (R is the real numbers) with addition (x,y) + (x', y') = (x+x', y+y'). Let H be the line y=mx through the origin: H = {(x,mx)such that x belongs to R (R is real numbers). Show that H is a subgroup of G and describe the cosets H + (a,b) geometrically.

    Cosets Mapping are Defined

    If H is a subgroup of G, define a mapping $ from the right cosets of H to the left cosets by $(Ha) = a^-1H. Show that $ is a (well defined) bijection.

    Homomorphisms and Kernels Proofs

    If $:G->G1 is a homomorphism, show that K = the set of g belonging to G given that $(g)=1 is a subgroup of G (called the kernel of $)

    Linear Optimization Applications

    Please see the attached file for full problem description. The local drug store sells a wide variety of cold medications. During the particularly harsh winter, the only three types left on the shelf were in the children's section. These are:

    Signals - System Properties

    I have difficulty in determining whether the signals are memoryless or causal. Please see the attached file for full problem description.

    Digital Signal Systems Problem

    The book I am using is "Digital Signal Processing" (Third Edition) by Prokis and Manolakis. It is question 2-45 on page 144. Consider the system described by the difference equation: y(n)=a*y(n-1)+b*x(n) determine b in terms of a so that THE SUMMATION OF h(n)=1 The limits of the summation are

    Subgroups

    If K is a subgroup of H and H is a subgroup of G, is K a subgroup of G? Please justify your answer.

    Subgroups Proof Functions

    If X is a nonempty subset of a group G, let <X>={x1^(k1),x2^(k2)...xm^(km)|m>=1, xiEX and kiEZ for each i}. a) show that <X> is a subgroup of G that contains x. b) show that <X>C=H for every subgroup H such that XC=H. Thus <X> is the smallest subgroup of G that contains X, and is called the subgroup generated by X. note:

    Linear Algebra Functions

    Q.63. For each i,j &#8805; 0, define P (i,j) as follows : P (0,0) = 0, and , for (i,j) &#8800; (0,0) , P(i,j) is the least integer &#8805; 0 that is not equal to P (k,l) for any (k,l) with k < i and l = j , or with k = I and l < j. Find P (2987,6592).

    Linear velocity

    Find the linear velocity of a point on the edge of a drum rotating 52 times per minute. The diameter of the wheel is 16.0in. Please show me all the steps thank you

    Proof : Diagonalization of Matrices

    Please see the attached file for full problem description. Write a proof for the following statement: If A is an n x n upper triangular matrix with no two diagonal elements the same, then A is similar to a diagonal matrix. Show work.

    Transformations : Diagonalization of Matrices

    Please see the attached file for full problem description. The linear operator T: R^3&#61614; R^3 defined by T(x_1, x_2, x_3) = (x_1 - 3x_3, x_1 + 2x_2 + x_3, x_3 - 3x_1). Determine whether or not there is a basis F for R^3 relative to which the transformation T can be represented by a diagonal matrix D=[T]_F. If there is,

    Matrices : Finding the Rank

    How to find rank of a matrix: definitions and an example (4*4 matrix) with detailed explanations. Find the rank of A= [1 0 2 0] [4 0 3 0] [5 0 -1 0] [2 -3 1 1]. Show all work.