cosh (T– i) = %3D

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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cosh (T– i) =
e cosl + i e" sin 1 – e-" cos 1 + ie-" sin 1
2
e cosl - i e™ sin 1 + e" cos 1 + i e-" sin 1
2
eT cosl - i eT sin 1 + e- cos 1 + ie-" sin 1
2
e" cosl - i e" sin 1 + e-" cos 1 - i e-" sin 1
2
Transcribed Image Text:cosh (T– i) = e cosl + i e" sin 1 – e-" cos 1 + ie-" sin 1 2 e cosl - i e™ sin 1 + e" cos 1 + i e-" sin 1 2 eT cosl - i eT sin 1 + e- cos 1 + ie-" sin 1 2 e" cosl - i e" sin 1 + e-" cos 1 - i e-" sin 1 2
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