Find the matrix A' = [LA]. Also find an invertible matrix Q such that A' = Q-¹AQ. (a) Suppose W₁ and W₂ are subspaces in a vector space V and that V = W₁ + W₂. Prove that V = W₁ W₂ if and only if any vector v € V can be represented uniquely as v = v₁ + v2 where V₁ € W₁, v₂ € W₂. (b) Suppose W₁ and W₂ are subspaces in a vector space V, and such that V =W₁ W₂. If B₁ is a basis of W₁ and 32 is a basis of W2 prove that 31 U 32 is a basis of V.
Find the matrix A' = [LA]. Also find an invertible matrix Q such that A' = Q-¹AQ. (a) Suppose W₁ and W₂ are subspaces in a vector space V and that V = W₁ + W₂. Prove that V = W₁ W₂ if and only if any vector v € V can be represented uniquely as v = v₁ + v2 where V₁ € W₁, v₂ € W₂. (b) Suppose W₁ and W₂ are subspaces in a vector space V, and such that V =W₁ W₂. If B₁ is a basis of W₁ and 32 is a basis of W2 prove that 31 U 32 is a basis of V.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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