Bài tập phương trình mặt phẳng

Bài tập phương trình mặt phẳng

12th Grade

10 Qs

quiz-placeholder

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Bài tập phương trình mặt phẳng

Bài tập phương trình mặt phẳng

Assessment

Quiz

Mathematics

12th Grade

Medium

Created by

Dao Kien

Used 2+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Trong không gian Oxyz cho  a=(1;0;2)\overrightarrow{a}=(-1;0;2)  ,  b=(2;1;1)\overrightarrow{b}=(2;1;-1)  . Chọn khẳng định sai

 a+b=5+6\left|\overrightarrow{a}\right|+\left|\overrightarrow{b}\right|=\sqrt{5}+\sqrt{6}  

 [a,b]=14\left|\left[\overrightarrow{a},\overrightarrow{b}\right]\right|=\sqrt{14}  

 [a,b]=(2;3;1)\left[\overrightarrow{a},\overrightarrow{b}\right]=(2;-3;1)  

 [a,b]=(2;3;1)\left[\overrightarrow{a},\overrightarrow{b}\right]=(-2;3;-1)  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Góc giữa hai véc-tơ   u=(1;2;1)\overrightarrow{u}=(1;2;-1)  và  v=(1;2;1)\overrightarrow{v}=(-1;-2;1)  là

 180180^{\circ}  

 135135^{\circ}  

 150150^{\circ}  

 00^{\circ}  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

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D

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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B

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D

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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B

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D

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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B

C

D

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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B

C

D

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