
Bài Test vui 23.10.2024
Quiz
•
Mathematics
•
12th Grade
•
Medium
Quach Huyen
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 2 pts
Cho mặt phẳng (P): 2x - y - 2z + 1 = 0. Một vecto pháp tuyến của (P) là
(2; 1; -2)
(2; -1; 2)
(2; -1; -2)
(-1; -2; 1)
2.
MULTIPLE CHOICE QUESTION
20 sec • 3 pts
Phương trình của mặt phẳng đi qua ba điểm M(2; 0; 0), N(0; 3; 0) và P(0; 0; -2) là
x/2 + y/3 - z/2 =1
x/2 + y/3 - z/2 = 0
x/2 + y/3 + z/2 =1
x/2 + y/3 - z/2 + 1 = 0
3.
MULTIPLE CHOICE QUESTION
20 sec • 3 pts
Cho mặt phẳng (Q): x + 2y - 3 = 0. Khẳng định nào dưới đây đúng?
(Q) chứa trục Oz
(Q) // (Oxy)
(Q) // trục Oz
(Q) // trục Ox
4.
MULTIPLE CHOICE QUESTION
20 sec • 3 pts
Mặt phẳng nào dưới đây chứa trục Ox?
3z - 2y = 0
y + z + 1 = 0
x = 0
x + y + z = 0
5.
FILL IN THE BLANK QUESTION
30 sec • 3 pts
Khoảng cách từ gốc tọa độ O đến mặt phẳng (P): x - 2y - 2z - 15 = 0 bằng
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Cho hai mặt phẳng (P): y - z + 1 = 0 và (Q): 3x - 5y + 5z + 1 = 0. Khẳng định nào dưới đây đúng?
(P) cắt (Q) nhưng không vuông góc với (Q)
(P) trùng với (Q)
(P) // (Q)
(P) vuông góc (Q)
7.
FILL IN THE BLANK QUESTION
20 sec • 3 pts
Cho điểm A(1; -2; 3) và B(0; 3; -1). Tọa độ của vecto AB là (a; b; c). Khi đó tổng a + b + c bằng bao nhiêu?
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