
C1-P1
Authored by DT040243 Nguyễn Thị Quỳnh
Architecture
University

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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Năng lượng của dãy xung đơn vị δ(n):
Ex = 0
Ex = 1
Ex = n
Ex = ∞
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Năng lượng của dãy U(n) :
Ex = 0
Ex = 1
Ex = ∞
Ex = n
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Năng lượng của dãy rectN (n) :
Ex = 0
Ex = ∞
Ex = 1
Ex = N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công suất trung bình của dãy xung đơn vị δ (n):
Px = 0
Px = ∞
Px = 1
Px = N
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công suất trung bình của dãy U(n) :
Px = 0
Px = 1/2
Px = ∞
Px = N
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tín hiệu nào dưới đây là tín hiệu công suất:
δ (n)
rectN (n)
U(n)
e-at. 1(t)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tín hiệu x(n) là tín hiệu chẵn nếu:
x(- n) = x(n)
x(n) đối xứng qua gốc toạ độ
x(- n) = - x(n)
x(n) > 0
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