Prove that = eika F (k) dk = F-1 {F (k)} 1 (a) ƒ (x) = (b) F [f (ax – b)] = eikb/a F (k/a).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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7. Prove that
(a) ƒ (x) =
V27
E eikr F (k) dk = F=' {F (k)},
(b) F [f (ax – b)] =à eikb/a F (k/a).
|a|
Transcribed Image Text:7. Prove that (a) ƒ (x) = V27 E eikr F (k) dk = F=' {F (k)}, (b) F [f (ax – b)] =à eikb/a F (k/a). |a|
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