
Toán
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Yến nguyễn
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50 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Tập nghiệm của bất phương trình 22x< 8 là :
( - vô cùng ; 3/2)
( 3/2; + vô cùng )
( - vô cùng ; 2)
( 0; 3/2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khẳng định nào dưới đây đúng?
$ x1/3= x 4/3+C
$ x1/3=3/4 x 4/3+C
$ x1/3= x 2/3+C
$ x1/3= 3/2x 2/3+C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu tam giác mà ba đỉnh của nó được lấy từ các đỉnh của một lục giác đều?
729
20
120
216 .
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho hàm số f(x) = cos x -x . Khẳng định nào dưới đây đúng?
$ f(x) = -sin x +x2+C
$ f(x) = -sin x -x2/2+C
$ f(x) = sin x -x2+C
$ f(x) = sin x -x2/2+C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đạo hàm của hàm số y= log2(x-1) là :
y' = (x-1)/ ln2
y' = 1/ ln2
y' = 1/ (x-1)*ln2
y' =1/ (x-1)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với ,b c là hai số thực dương tùy ý thỏa mãn log5b >= log5c. khẳng định nào dưới đây là đúng?
b>= c
b<= c
b> c
b< c
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho hàm số bậc ba y= f (x) có đồ thị là đường cong trong hình bên. Số nghiệm thực của phương
trình f(x) = 2 là :
1
0
2
3
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