Cộng, trừ và nhân số phức

Quiz
•
Mathematics
•
12th Grade
•
Hard
Nhi Nhi
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cho số phức z=2+3i. Phép cộng nào sau đây cho kết quả là z−i ?
A. z+(−1+i)
B. z−(1−i)
C. z+(−1−i)
D. z−(1+i)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm tổng của hai số phức w=5−2i và z=3+4i.
A. 8+2i
B. 8−2i
C. 2+6i
D. 2−6i
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hiệu của hai số phức z=4−5i và w=2+i là số phức nào?
A. 2−4i
B. 2+4i
C. 6−6i
D. 6+6i
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z=3+2i. Hãy tìm số phức w sao cho z−w=1−i.
A. w=2+3i
B. w=4+i
C. w=2−3i
D. w=4−i
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tích của hai số phức z=1+2i và w=2−i là số phức nào?
A. 3+3i
B. 3−3i
C. −1+5i
D. −1−5i
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