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4. Assume y(x) : = ea" cosBx is one of the solutions of the DE у3) — Зу" + 7у - 5у —D 0. Then a + B : (A) 3 (В) 1 (С) —3 (D) 2 (E) 4

4. Assume y(x) : = ea" cosBx is one of the solutions of the DE у3) — Зу" + 7у - 5у —D 0. Then a + B : (A) 3 (В) 1 (С) —3 (D) 2 (E) 4

Advanced Engineering Mathematics
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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4. Assume y(x) : = ea" cosBx is one of the solutions of the DE у3) — 3у" + 7у - 5у —D 0. Then α+β: (A) 3 (В) 1 (С) -3 (D) 2 (E) 4
Transcribed Image Text:4. Assume y(x) : = ea" cosBx is one of the solutions of the DE у3) — 3у" + 7у - 5у —D 0. Then α+β: (A) 3 (В) 1 (С) -3 (D) 2 (E) 4
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