- #1
Jncik
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Homework Statement
find
[tex]\int_{-\infty}^{+\infty} x(t) \delta (\beta t - t_{0}) dt [/tex]
for [tex] x(t) = e^{a t} u(t) [/tex]
there is no information conserning a, β, or [tex]t_{0}[/tex]...
The Attempt at a Solution
assuming that [tex]t_{0}[/tex] is a constant[tex]\int_{-\infty}^{+\infty} x(t) \delta (\beta t - t_{0}) dt =
\int_{-\infty}^{+\infty} e^{at}u(t) \delta (\beta t - t_{0}) dt
= \int_{0}^{+\infty} e^{at} \delta (\beta t - t_{0}) dt
= \int_{0}^{+\infty} e^{\frac{a}{b}t_{0}} dt
= +\infty
[/tex]