จำนวนเชิงซ้อน

Quiz
•
Mathematics
•
11th Grade
•
Medium
Sirikan Nookaew
Used 9+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
เท่ากับเท่าใด
i
-1
-i
1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ส่วนจริงของ z = 2 - 8i เท่ากับเท่าใด
2
8
-8
-8i
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ส่วนจินตภาพของ z = -3 + 4i เท่ากับเท่าใด
-3
3
4
4i
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(a + bi) - (2 + 5i) = 3 - i แล้ว a + b เท่ากับเท่าใด
9
5
4
1
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(-3 + 2i) - (4 + i) เท่ากับเท่าใด
-7 + i
-7 + 3i
-1 + i
-1 + 3i
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(4 + 8i) / (2i) เท่ากับเท่าใด
-4 + 2i
4 + 2i
-4 -2i
4 - 2i
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(3 - 4i) / (1 - 2i) เท่ากับเท่าใด
-2 - i
2.2 + 0.4i
2.2 - 0.4i
2i - 1
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