
Câu hỏi Toán học Cơ bản
Quiz
•
Mathematics
•
12th Grade
•
Hard
6.sầm 11a6
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm nguyên hàm Z 7ex dx.
ex + C
7ex + C
7 ln x + C
e7x + C
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gọi S là diện tích của hình phẳng giới hạn bởi các đường y = f(x), y = 0, x = −1, x = 1. Khẳng định nào sau đây đúng?
S = 1Z −1 jf(x)j dx
S = −1Z1 f(x) dx
S = 1Z −1 f(x) dx
S = p 1Z −1 f(x) dx
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tính độ lệch chuẩn của mẫu số liệu ghép nhóm trên.
5, 30
5, 24
5, 22
1, 80
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Trong không gian Oxyz, đường thẳng D đi qua điểm B(−7; 5; −4) và nhận vectơ #» u = (4; 5; 1) làm véctơ chỉ phương có phương trình là
x − 4/ −7 = y − 5/ 5 = z − 1/ −4
x + 7 /4 = y − 5/ 5 = z + 4/ 1
x + 4/ −7 = y + 5/ 5 = z + 1 /−4
x − 7/ 4 = y + 5 /5 = z − 4/ 1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm nghiệm của phương trình 6x+1 = 1 /6.
x = 8
x = 1
x = −2
x = −9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tìm đường tiệm cận đứng của đồ thị hàm số y = 3x − 3/ 2x + 3.
x = 3 /2
x = −3/ 2
y = 5/ 2
y = 7/2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tập nghiệm của bất phương trình log5(x + 12) > 4.
S = (637; + vô cùng)
S = (613; + vô cùng)
S = [613; + vô cùng)
S = (− vô cùng; 637)
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