s251final(fa10)

s251final(fa10) - x (b) ) 7 cos( 50 ) 2 sin( 30 20 60 ) , (...

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MATH 251 Final Exam December 15, 2010 ANSWER KEY (Form A) 1. A 2. A 3. D 4. B 5. B 6. C 7. D 8. C 9. A 10. C 11. B 12. B 13. D 14. A 15. ) 6 6 sin( ) ( 2 1 ) 6 cos( 4 ) ( 1 - + - = t t u t t y 16. 4 ) 1 2 ( 2 - = n n λ , - = x n x X n 2 1 2 cos ) ( , n = 1, 2, 3, … 17. (a) -- (b) a 10 = 0 (c) iv (d) F (±2) → 0, F (5) → 4 18. (a) v ( x ) = 60 – 20
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Unformatted text preview: x (b) ) 7 cos( 50 ) 2 sin( 30 20 60 ) , ( 2 2 196 16 x e x e x t x u t t π--+--= (c) 42 ) 9 . ( ) , 9 . ( lim = = ∞ → v t u t (d) It will be equal to, since the steady-state solution will be the same....
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This note was uploaded on 07/16/2011 for the course MATH 251 taught by Professor Chezhongyuan during the Spring '08 term at Penn State.

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