Advanced Math Homework Answers | Advanced Math Homework Help

Let $ B_1 = \left\{(2,1,1,1),(1,1,1,1),(1,1,2,1)\right\} \hspace{2mm} $and $ \hspace{2mm}B_2 =\left\{(2,1,2,2)\right\}\hspace{2mm} $be two subsets of$ \hspace{2mm} \mathbb{R}^4, E_1 $ be a subspace spanned by$ B_1, E_2 $be a subspace spanned by $ B_2 $, and L be a linear operator on $ \mathbb{R}^4 $ defined by

$ L(v)=(-w +4x-y+z,-w+3x,-w+2x+y,-w+2x+z)\hspace{2mm},v=(w,x,y,z) $

(a) Show that $ B_1 $ is a basis for $ E_1 $ and $ B_2 $ is a basis for $ E_2 $

(b) Show that $ E_1 $ and $ E_2 $ are L-invariant. Find the matrices $ A_{1} =[L_{E_1}]_{B_1} $ and $ A_2=[L_{E_2}]_{B_2} $

In: Advanced Math

Jordan Canonical Form

Let A be a square matrix defined by $ A = \begin{pmatrix}6&2&3\\ -3&-1&-1\\ -5&-2&-2\end{pmatrix} $L be a map from$ \hspace{2mm} \mathbb{R}^3\hspace{2mm} $into$ \hspace{2mm}\mathbb{R}^3\hspace{2mm} $by$ \hspace{2mm} L(v) = Av. $

(a) Show that L is a linear operator on $ \hspace{2mm}\mathbb{R}^3. $

(b) Find the characteristic polynomial of L with respect to standard basis for $ \mathbb{R}^3 $ Derive the determinant of L then deduce that L is invertible.

(c) Find the eigenvalues and eigenspaces of L.

(d) Show that L is not diagonalizable, but it is triangularizable, then triangularize L.

(e) Write $ L^n $ in term of n, where $ L^n = L(L(...(L)..)) $, the n compositions of L.

In: Advanced Math

Jordan Fanonical Form

Let A be a square matrix defined by $ A =\begin{pmatrix}-1&-2&-1&3\\ -6&-5&1&6\\ -6&-4&0&6\\ -6&-7&1&8\end{pmatrix} $ and its characteristics polynomial $ P(\lambda)=\bigg(\lambda+1\bigg)^2\bigg(\lambda-2\bigg)^2 $

(a) Find the minimal polynomial of A.

(b) Deduce that A is not diagonalizable, but it is triangularizable, then triangularize A.

(c) Write $ A^n $ in terms of n.

In: Advanced Math