
Số phức
Quiz
•
Fun
•
9th - 12th Grade
•
Practice Problem
•
Medium
123456789 nguyenvinhloi
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tìm các số thực x, y thỏa mãn (3-2i)(x-yi)-4(1-i)=(2+i)(x+yi)
x=3,y=-1
x=-3,y=-1
x=-1,y=3
x=3,y=1
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tìm số phức z biết rằng điểm biểu diễn của z nằm trên đường tròn có tâm O, bán kính bằng 5 và nằm trên đường thẳng d: x - 2y + 5 = 0
z=3-4i
z=3+4i
z=4+3i
z=4-3i
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(1;4)
(-1;4)
(-1;-4)
(1;-4)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(-1;1)
(-1;-1)
(1;1)
(1;-1)
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