n = 2 r xF + Σ Σ rx F Trx i=1 i=1_j=1 (r × F) + (r, × F)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
100%
Why this sum can be written as below expresion?

Transcribed Image Text:작
dL
dt
i=1
r X |
× F + Σ F
i
j=1
- ΣrxF +22rxF,
+ΣΣ
r; F.
ij
i=l
i=1_j=1
(r × F) + (r, × F.)
X
7
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