Posted by jimmy on Wednesday, October 27, 2010 at 4:01am.
first, there is s-shifting here since e^4t is multiplied to cos(2t).
from e^4t, we know that a = 4,, and that L{cos 2t} = s/(s^2 + 4) , therefore:
L{e^4t(cos 2t)} = (s-a)/((s-a)^2 + 4) = (s-4)/((s-4)^2 + 4)
so there,, :)
(3m − 2n)(3m + 4n)
Related Questions
advanced math - what is the Laplace transform of e^4t(cos 2t) ?
ALGEBRA/PLEASE HELP - have the answer and would love confirmation. VERY ...
ALGEBRA - I have the answer and would love confirmation. VERY APPRECIATED! Find ...
Trig - sin^4t-cos^4t/sin^2t cos^2t= sec^2t-csc^2t i have =(sin^2t+cos^2t)(sin^2t...
differential equation - Find the Laplace transform by using the theorem of L{f(t...
3unit maths - Find the equation of the chord of the parabola joining the points ...
calculus - Let f(t)=2t²+3t-4 f(t+1)=f(t)+4t+5 TRUE or FALSE answer is true...
alg - Which expression represents the sum of the following? (5)/ (2t + 1) + (-1...
alg - Which expression represents the sum of the following? 5 / 2t + 1 + -1 / 4t...
college - from 0 to (π/2) ∫(sin^3⁡θ cos^3&...
For Further Reading
