Laplace transform w/ partial fraction

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SUMMARY

The discussion focuses on solving the initial value problem using Laplace transforms for the equation y'' + 2y' + y = (8/3)cos(2t) - 2sin(2t) with initial conditions y(0) = 1 and y'(0) = 7/3. The user has derived the expression Y = {s^3 + (13/3)s^2 + (20/3)s + (40/3)}/{(s^2 + 4)(s^2 + 2s + 1)} and seeks assistance in performing partial fraction decomposition on the denominator. The discussion highlights the utility of www.quickmath.com for algebraic manipulations and solving equations.

PREREQUISITES
  • Understanding of Laplace transforms and their properties
  • Familiarity with solving second-order differential equations
  • Knowledge of initial value problems in differential equations
  • Experience with partial fraction decomposition techniques
NEXT STEPS
  • Learn how to perform partial fraction decomposition in detail
  • Study the application of Laplace transforms in solving differential equations
  • Explore the use of www.quickmath.com for algebraic problem-solving
  • Review the properties and applications of the Laplace transform for different functions
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Students and educators in mathematics, particularly those studying differential equations, as well as engineers and physicists applying Laplace transforms in their work.

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Homework Statement


solve the following initial value problem using Laplace transforms
y"+2y'+y=(8/3)cos(2t)-2sin(2t)
y(0)=1
y'(0)=7/3


Homework Equations


L[d^2y/dt^2]=s^2Y-sy(0)-y'(0)
L[dy/dt]=sY-y(0)
L[coswt]=s/(s^2+w^2)
L[sinwt]=w/(s^2+w^2)


The Attempt at a Solution



so far: Y={s^3+(13/3)s^2+(20/3)s+(40/3)}/{(s^2+4)(s^2+2s+1)}
need help turning denominator into partial fraction.
Thanks!
 
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www.quickmath.com - powered by webMathematica: this site is very handy and will do algebra (factoring, simplify, partial fraction decomposition, expand), solve equations/inequalities (single or a system), plot equations/inequalities (single or a system), derivatives, definite or indefinite integrals, and do matrix arithmetic/inverses/determinants.
 
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thanks a lot!
 

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