Bài Test vui 23.10.2024

Bài Test vui 23.10.2024

12th Grade

15 Qs

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Bài Test vui 23.10.2024

Bài Test vui 23.10.2024

Assessment

Quiz

Mathematics

12th Grade

Medium

Created by

Quach Huyen

Used 1+ times

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15 questions

Show all answers

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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