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2024-2025 LESSON 3 MATHEMATIC ENGINEERING
Typology: Lecture notes
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Question 1 : Determine F(s) where f t( ) t sin( 2 t H t)
e e
s s
F s
s
s
2 2
2
e e
s s
s
F s
s
s
2 2
2
e e
s s
s
F s
s
s
2 2
2
e e
s s
s
F s
s
s
2 2
2
2
2
2
2
F s ( )
s s s
2
t t
f t e e
3
t t
f t e e
3
t t
f t e e
3
t t
f t e e
3
s
e
F s
s
a. ( )
t
f t e H t
4
b. ( )
t
f t e H t
4
c. ( )
t
f t e H t
4
d. ( )
t
f t e H t
4
s
F s
s s
2
t
e
f t
4
t
e
f t
4
t
e
f t
4
t
e
f t
4
f t( ) cos t H t
e
s
s
F s
s
8
2
b.
e
s
F s s
s
8
2
e
s
s
F s
s
8
2
d.
e
s
F s s
s
8
2
( ) sin cos
t
y t t e t
5
( ) sin cos
t
y t t e t
5
( ) sin cos
t
y t t e t
5
( ) sin cos
t
y t t e t
5
s
s
F s e
s
2
5
a.
( ) H e
t
t t
f t t
3 4
6 3
b.
( ) H e
t
t t
f t t
3 4
6 3
( ) H e
t
t t
f t t
3 4
6 3
( ) H e
t
t t
f t t
3 4
6 3
t
f t te H t
2
s s
e e e e
F s
s
s
3 6 3 6
2
s s
e e e e
F s
s
s
3 6 3 6
2
s s
e e e e
F s
s
s
3 6 3 6
2
s s
e e e e
F s
s
s
3 6 3 6
2
s
s
F s e
s s
2
2
( ) cos sin
t
f t e H t e t t
4 2
( ) cos sin
t
f t e H t e t t
4 2
( ) cos sin
t
f t e H t e t t
4 2
( ) sin cos
t
f t e H t e t t
4 2
sin( ) , , , , ( ).
t
dy
t t y te t N y
dt
2