ส่วนจริงและส่วนจินตภาพตามลำดับของจำนวนเชิงซ้อน (–7a, 4b) ตรงกับข้อใด
จำนวนเชิงซ้อน1

Quiz
•
Mathematics
•
9th - 10th Grade
•
Hard
วัชรา จรูญผล
Used 46+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Re(Z)=-7 Im(Z)=4
Re(Z)=-7a Im(Z)=4b
Re(Z)=-7b Im(Z)=4a
Re(Z)= 7a Im(Z)=-4b
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดไม่เป็นจำนวนเชิงซ้อน
3i
(0, )
(
2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ข้อใดคือคำตอบของ (− 3, 2 )+ (2 , − 2 )
(5,0)
(-5,0)
(-1,0)
(-1,4)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(3 − 4x, 6 ) = (7, 5y +11) จงหา xy −1
0
-1
1
-2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดคือคำตอบของ (– 2 – 5i) + (–3i)
– 2 – 8i
– 5 + 5i
– 5 – 5i
–15 + 6i
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดคือคำตอบของ (– 3, 0)(0, 4)
(0, 12)
(0, 0)
(– 12, 0)
(0, – 12)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดคือคำตอบของ (– 7 – 10i) (3 + 6i)
– 4 – 4i
–10 – 16i
39 – 72i
– 81 – 12i
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