
complex numbers

Quiz
•
Mathematics
•
11th Grade
•
Hard
D F
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
(3 + 2i) + (4 - 5i)
7 + 7i
1 - 3i
1 - 7i
7 - 3i
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
(4 - 2i) - (3 + 6i)
7 - 4i
1 + 4i
1 - 8i
7 - 8i
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
อินเวอร์สการคูณของ (-2,1) คือเท่าใด
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
จงหาค่าของ z1+z2 หาก
z1= 2(cos30°+isin30°)
z2= 2(cos60°+isin60°)
6i
2-6i
-6i
2+6i
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
สังยุคของ 10-6i คือเท่าใด
10 ⋅ 6i
10/6i
10+6i
10-6i
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
หาก z= 3+i แล้ว lzl มีค่าเท่ากับเท่าใด
√10
10
-√10
-10
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