1. (a) Let U {A € M3 (R) | AT = -A}, a subspace of M3 (R). (i) Find a basis B for U. Justify your answer. (ii) Suppose that C = {C1, C2, C3} is another basis for U and that -5 -1 PB-C = 7 -8 -3 -4 3 1 Find C1. Justify your answer.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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1. (a) Let U = {A € M3(R) | AT = -A}, a subspace of M3 (IR).
%3D
(i) Find a basis B for U. Justify your answer.
(i) Suppose that C = {C1, C2, C3} is another basis for U and that
-5 -1 -1
PB-C =
7 -8
-3
%3D
esd Uvll
()
-4
3.
1
Find C1. Justify your answer.
(b) Suppose that V is a 3-dimensional vector space that is spanned by vectors v1, V2, V3, V4
satisfying 3vı +V3 – 2v4 = 0. Find a basis for V. Justify your answer carefully.
Transcribed Image Text:1. (a) Let U = {A € M3(R) | AT = -A}, a subspace of M3 (IR). %3D (i) Find a basis B for U. Justify your answer. (i) Suppose that C = {C1, C2, C3} is another basis for U and that -5 -1 -1 PB-C = 7 -8 -3 %3D esd Uvll () -4 3. 1 Find C1. Justify your answer. (b) Suppose that V is a 3-dimensional vector space that is spanned by vectors v1, V2, V3, V4 satisfying 3vı +V3 – 2v4 = 0. Find a basis for V. Justify your answer carefully.
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