
Toán 12
Quiz
•
Mathematics
•
12th Grade
•
Hard
Lê Mỹ
Used 1+ times
FREE Resource
Enhance your content in a minute
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho số phức z = 5+3i. Số phức liên hợp của z là:
-5+3i
-5-3i
5-3i
5i-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho các số phức z1 = 2+3i ; z2 = 5-6i. Số phức 2z1 - 3z2 =
-11-12i
19+24i
-11+12i
-11+24i
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho cấp số cộng (un) có u1 = 3; u2=7. Công sai của cấp số cộng đã cho bằng
1/2
2
-1/2
-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đạo hàm của hàm sơ cấp (ex)' =?
ex
ex . x
ex . lne
-1/ex
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong các khối hình sau, khối không phải là khối tròn xoay là:
Khối cầu
Khối trụ
Khối lăng trụ
Khối nón
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
loga1 bằng bao nhiêu?
1
a
1/a
0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a = logab <=> aa=?
a
0
b
1
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