For each of the following integrals, specify the values of the real parameter u which

Chapter 9, Problem 9.1

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QUESTION:

For each of the following integrals, specify the values of the real parameter \(\sigma\) which ensure that the integral converges:

(a) \(\int_{0}^{\infty} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(b) \(\int_{-\infty}^{0} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(c) \(\int_{-5}^{5} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(d) \(\text { (d) } \int_{-\infty}^{\infty} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(e) \(\int_{-\infty}^{\infty} e^{-5|t|} e^{-(\sigma+j \omega) t} d t\)
(f) \(\int_{-\infty}^{0} e^{-5|t|} e^{-(\sigma+j \omega) t} d t\)

Questions & Answers

QUESTION:

For each of the following integrals, specify the values of the real parameter \(\sigma\) which ensure that the integral converges:

(a) \(\int_{0}^{\infty} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(b) \(\int_{-\infty}^{0} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(c) \(\int_{-5}^{5} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(d) \(\text { (d) } \int_{-\infty}^{\infty} e^{-5 t} e^{-(\sigma+j \omega) t} d t\)
(e) \(\int_{-\infty}^{\infty} e^{-5|t|} e^{-(\sigma+j \omega) t} d t\)
(f) \(\int_{-\infty}^{0} e^{-5|t|} e^{-(\sigma+j \omega) t} d t\)

ANSWER:

Step 1 of 7

The properties of the exponent,

 Converges in the interval if    

 Converges in the interval if    

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