Let V = R^3. Consider the matrix, A = 11 0 11 7 -3 30 4 -8 25 Define T : V →V as Tv = Av. (iii) Show that A −λI is a nilpotent matrix, i.e. there is a positive integer n such that (A −λI)^n = 0. Find the smallest such n. (iv) Find v ∈V such that (A −λI)^(n−1)v =/ 0. (v) For 1 ≤i ≤n, define v_i = (A−λI)^(n−i)v. Prove that B = {v_1,...,v_n} is a basis of V .

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let V = R^3. Consider the matrix,

A =

11 0 11
7 -3 30
4 -8 25

Define T : V →V as Tv = Av.

(iii) Show that A −λI is a nilpotent matrix, i.e. there is a positive
integer n such that (A −λI)^n = 0. Find the smallest such n.
(iv) Find v ∈V such that (A −λI)^(n−1)v =/ 0.
(v) For 1 ≤i ≤n, define v_i = (A−λI)^(n−i)v. Prove that B = {v_1,...,v_n}
is a basis of V .
(vi) Find the matrix of T with respect to B i.e. [T]^B_B.

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