C1-P1

C1-P1

University

50 Qs

quiz-placeholder

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C1-P1

C1-P1

Assessment

Quiz

Architecture

University

Practice Problem

Hard

Created by

DT040243 Nguyễn Thị Quỳnh

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50 questions

Show all answers

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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