find the limit of this Laplace transform lim_(epsilon -> 0) L(f_(epsilon)(x)).

Bodonimhk

Bodonimhk

Answered question

2022-10-12

Let f ϵ ( x ) be defined as
f ϵ ( x ) = { 1 / ϵ , 0 x ϵ 0 , x > ϵ
I calculated the laplace transform of f ϵ ( x ) to be
L ( f ϵ ( x ) ) = 1 e p ϵ p ϵ
I want to find the limit of this Laplace transform lim ϵ 0 L ( f ϵ ( x ) )

Answer & Explanation

cesantedz

cesantedz

Beginner2022-10-13Added 12 answers

You can do a Taylor expansion of the exponential e p ϵ = 1 p ϵ + ( p ϵ ) 2 / 2 + . . . The 1 will cancel, and what you are left with is
lim ϵ 0 p ϵ + ( p ϵ ) 2 / 2 + . . . p ϵ = 1
Oscar Burton

Oscar Burton

Beginner2022-10-14Added 3 answers

Apply L'Hospital rule
lim ϵ 0 1 e p ϵ p ϵ = lim ϵ 0 e p ϵ = 1

Do you have a similar question?

Recalculate according to your conditions!

New Questions in Differential Equations

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?