
Bài tập số phức
Authored by Thu Nguyễn
Mathematics
1st Grade
Used 8+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z = 3-2i . Tìm phần thực của số phức z
3
2
-3
-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z = 3 - 4 i. Tìm |z|
|z| = - 3
|z| = 5
|z| = 4
|z| = 25
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số phức nào sau đây là số thuần ảo
z = 5
z = 4 + 7i
z = 3i
z = 1+ i
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z = 3-2i . Tìm phần ảo của số phức liên hợp của z.
3
-3
2
-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z = 6 + 2i. Điểm biểu diễn của số phức liên hợp của z là
M(6; 2)
M(-6; 2)
M(6; -2)
M(-6; -2)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong mặt phẳng Oxy điểm M( -3; 5)
biểu diễn cho số phức nào?
z = -3 + 5i
z = -3i + 5
z = 3 - 5i
z = -3 - 5i
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm hai số thực x, y thỏa mãn
3x + yi +1 = 7 - 4i
x = 7/3; y = 4
x = 7; y = -4
x = 3; y = 1
x = 2; y = -4
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