
Complex Numbers Quiz
Quiz
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Engineering
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University
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Practice Problem
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Medium
อาทิตย์ ยาวุฑฒิ
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
จำนวนเชิงซ้อนในรูปทั่วไป คือข้อใด?
a + b
a + bi
ab
a^2 + b^2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
หน่วยจินตภาพ i มีสมบัติคืออะไร?
i^2 = -1
i^2 = 0
i^2 = 1
i^2 = i
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ผลบวกของ (3 + 4i) + (1 - 2i) คือเท่าไร ?
4 + 2i
2 + 6i
4 + 6i
2 + 2i
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ผลคูณของ (2 + 3i)(1 - i) คือเท่าไร ?
5 + i
-1 + 5i
5 - i
1 + i
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ผลหารของ (3 + 2i) / (1 - i) คือเท่าไร ?
(5 + i) / (2)
(1 + 5i) / (2)
(5 - i) / (2)
(1 - 5i) / (2)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
โมดูลัสของจำนวนเชิงซ้อน 3 + 4i คือเท่าไร ?
5
7
6
13^0.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
จำนวนเชิงซ้อนที่เป็น pure imaginary คือข้อใด ?
3 + 2i
2 - i
0 + 5i
5
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