Let A be an m x m matrix partitioned as A = rank (A) = rank (A₁1) = m₁. 1.2.1 Show that A22 = A21A¹A12- 1.2.2 Use the result of part 1.2.1 to show that B = A11 A12 A21 A22 (0) where A₁ is m₁ x m₁ and (0) (0) 3) is a generalised inverse of

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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1.2 Let A be an m x m matrix partitioned as A =
rank (A) = rank (A₁1) = m₁-
1.2.1 Show that A22 = A21A₁A12-
1.2.2 Use the result of part 1.2.1 to show that B =
A.
A11 A12
A21 A22
where A₁ is m₁ x m₁ and
[40] is a
is a generalised inverse of
Transcribed Image Text:1.2 Let A be an m x m matrix partitioned as A = rank (A) = rank (A₁1) = m₁- 1.2.1 Show that A22 = A21A₁A12- 1.2.2 Use the result of part 1.2.1 to show that B = A. A11 A12 A21 A22 where A₁ is m₁ x m₁ and [40] is a is a generalised inverse of
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