cosh (T- i) = %3D e cosl i e sin 1 + e- cos 1 + i e- sin 1 e cosl i e sin 1 + e-TI cos 1 ie- sin 1 2 e cosl + i e sin 1 e cos 1 + i e-™ sin 1 e cosl - i e sin 1 + eT cos 1 + ie I sin 1 2.

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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Question 10
cosh (T - i) =
e cosl - i e sin 1 + eI cos 1 + i e- sin 1
eT cosl
- i eT sin 1 + e
cos 1 ieI sin 1
e cosl + i eT sin 1
cos 1 + ie-I sin 1
2
e cosl i e sin 1 + eT cos 1 + i e sin 1
2
Transcribed Image Text:Question 10 cosh (T - i) = e cosl - i e sin 1 + eI cos 1 + i e- sin 1 eT cosl - i eT sin 1 + e cos 1 ieI sin 1 e cosl + i eT sin 1 cos 1 + ie-I sin 1 2 e cosl i e sin 1 + eT cos 1 + i e sin 1 2
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