แบบทดสอบกลางภาควิชาคณิตศาสตร์เพิ่มเติม(ค32202)

Quiz
•
Mathematics
•
11th Grade
•
Medium
renoo Parisawong
Used 8+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4i
-4i
4
-4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
-12
12
-12i
12i
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ถ้า (1-2a+bi)+3i = 9 +ai แล้ว a และ b มีค่าเท่าใด
a=4 และ b=7
a=-4 และ b=-7
a=4 และ b=-7
a=-4 และ b=7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ขัอใดคือผลลัพธ์ของจำนวนเชิงซ้อน (8, -8)(5, 4)
(-72, -8)
(72, 8)
(72, -8)
(-72, 8)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ขัอใดคือผลลัพธ์ของจำนวนเชิงซ้อน 2(4+i)+(12-15i)
20-13i
20+13i
13-20i
13+20i
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
-2i
2i
2
-2
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