even. 4) Show that, TF[f(t)] = -2 o f(t) sin(2nvt)dt, in the case where the function (f) is odd. 5) The function (g) is defined by: g(t) = t2. n(t), Where n(t), indicates the function 'door (i) Define the 'door' function. (ii) Give the graphical representation of the function (g). (iii) Determine TF [g (t)]. 6) Show that, TF[f(t - a)] = e-j2nva TF[f(t)], where a E R*

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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can you please help me on sub part 4 to part 7.

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Question
1) Let f be a function of the real variable t, absolutely integrable over R and continuous
over a closed interval. Define the Fourier transform of this function.
2) Give a physical interpretation of the Fourier transform of a function.
TF [f (t)] denotes the Fourier transform of a function (f).
3) Show that, TF[f(t)] = 2 f(t) cos(2nvt)dt, in the case where the function (f) is
%3D
even.
too
4) Show that, TF[f(t)] = -2 f(t) sin(2nvt)dt, in the case where the function (f)
is odd.
5) The function (g) is defined by:
g(t) = t2.n(t),
Where n(t), indicates the function 'door'
(i) Define the 'door' function.
(ii) Give the graphical representation of the function (g).
(iii) Determine TE [g (t)].
6) Show that, TF[f(t – a)] = e-j2rva TF[f(t)], where a E R*
%3D
7) The function (h) is defined by:
h(t) = 0 if te]-o, 0[; h(t) = t2 – t+ 0,25 if te [0, 1[;h(t) = 0 ifte
[1, +o[.
(i) Give the graphical representation of the function (h).
(ii) Using the previous results, determine the Fourier transform of the function (h).
Transcribed Image Text:Question 1) Let f be a function of the real variable t, absolutely integrable over R and continuous over a closed interval. Define the Fourier transform of this function. 2) Give a physical interpretation of the Fourier transform of a function. TF [f (t)] denotes the Fourier transform of a function (f). 3) Show that, TF[f(t)] = 2 f(t) cos(2nvt)dt, in the case where the function (f) is %3D even. too 4) Show that, TF[f(t)] = -2 f(t) sin(2nvt)dt, in the case where the function (f) is odd. 5) The function (g) is defined by: g(t) = t2.n(t), Where n(t), indicates the function 'door' (i) Define the 'door' function. (ii) Give the graphical representation of the function (g). (iii) Determine TE [g (t)]. 6) Show that, TF[f(t – a)] = e-j2rva TF[f(t)], where a E R* %3D 7) The function (h) is defined by: h(t) = 0 if te]-o, 0[; h(t) = t2 – t+ 0,25 if te [0, 1[;h(t) = 0 ifte [1, +o[. (i) Give the graphical representation of the function (h). (ii) Using the previous results, determine the Fourier transform of the function (h).
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