Số phức

Số phức

9th - 12th Grade

10 Qs

quiz-placeholder

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Số phức

Số phức

Assessment

Quiz

Fun

9th - 12th Grade

Practice Problem

Medium

Created by

123456789 nguyenvinhloi

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10 questions

Show all answers

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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