Question

Elementary Laplace Transtorms Y(S) = {f} -L e-stf(t)dt fc = C-'{F(s)} F(s) = {f} f(t) =-'{F(s)) F(s) = {f} -CS 1. 1 1 12. uct) le S> 0 S> 0 . s S 2. eat 1 13. ucOf(t-c) e-csF(s) S> a S-a n! 3. t",n e Z 14. ectf(t) F( sc) S> 0 sh+1 4. tP, p>-1 (p+1) S> 0 SP+1 15. f(ct) F). c>0 16. SFt - 1)g(t)dt F(s)G(*) 5. sin at S> 0 16. cos at 17. 8(t -c) S> 0 a s²+ a²1 S s²+ a² a s2 - 42' S s² - a²' 7. sinh at "F(5) - (0) ----(0) 18. f(n) (t) s> lal 8. cosh at f(n)(s) 19. (-t)"f(t) S> jal 9. eat sin bt 20. f(t + 7) = f(t) b (s-a)2 + b2' S> a 1 1 - e-s7 -st f(t)dt S-a 10. eat cos bt 21. f"(t) s-F(s) - sf (0) - f'(0) (s - a)2 + b2-5 > a 11. theat, n e Z+ n! 22. f'(o) SF(s)-f(0) sa

Answer 1

x=862 4 = 6x4 consider aa=382 differentiale with respet tot x"=se but a=62 x = 31600) Ry' = 1824 34-1844 =of which is second order D.E. in 24 Taking Laplace Transform L{xly - 18 48x48=0 S2 L{x (+)}-S 24 (0) - 2 (0)-18 { x (t)} =0 ${{ L{eucts} – 52460) – 2020) -18 13x2163} =0 L{RICH)} = Rp) 374-1874 - Seo) -R120) =0 (52-18) 34-5460) – 20) =o. which is second ordere question io 3a.