контрольная 11 геометрия

контрольная 11 геометрия

11th Grade

18 Qs

quiz-placeholder

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контрольная 11 геометрия

контрольная 11 геометрия

Assessment

Quiz

Mathematics

11th Grade

Medium

Created by

Ирина Екименко

Used 9+ times

FREE Resource

18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Найдите координаты вектора  AB\overrightarrow{AB}  , если  A(2;3;11)A(2;-3;-11)  ,  B(3;5;7)B(3;-5;-7)  

{6; 15; 77}

{5; -8; -18}

{1; -2; 4}

{-1; -2; -4}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Найдите координаты точки  BB  , если  A(3; 2; 1)A\left(-3;\ 2;\ -1\right)   и  AB{2; 3; 5}\overrightarrow{AB}\left\{2;\ -3;\ 5\right\}  

(5; -5; 6)

(1; 1; -4)

(1; -1; 4)

(-1; -1; 4)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Найдите длину вектора  a,\overrightarrow{a,}  если  a{1; 1; 2}\overrightarrow{a}\left\{1;\ -1;\ 2\right\}  .

2

 6\sqrt{6}  

4

6

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Найдите длину вектора  n=2a3b\overrightarrow{n}=2\overrightarrow{a}-3\overrightarrow{b} ,если  a{1; 1; 2} и b{2; 2; 0}\overrightarrow{a}\left\{1;\ -1;\ 2\right\}\ и\ \overrightarrow{b}\left\{2;\ 2;\ 0\right\}  

 838\sqrt{3}  

 626\sqrt{2}  

 868\sqrt{6}  

 464\sqrt{6}  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Даны векторы  a{2; 1; 3} и b{3; 2; 1}\overrightarrow{a}\left\{2;\ -1;\ 3\right\}\ и\ \overrightarrow{b}\left\{-3;\ 2;\ 1\right\} .
Выберите вектор, коллинеарный вектору  ab\overrightarrow{a}-\overrightarrow{b} .

{5; 1; 2}

{-10; 6; -4}

{15; -9; -6}

{-1; 1; 4}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Точка M - середина отрезка AC.
 M(2; 1; 1), A(3; 2; 4)M\left(2;\ 1;\ 1\right),\ A\left(3;\ -2;\ 4\right) .
Найдите координаты точки C.

(2,5; -0,5; 2,5)

(1; -3; 3)

(1; 4; -2)

(4; 0; -2)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Даны точки  A(3; 2; 4), B(2; 3; 3), C(1; 4; 2)A\left(3;\ -2;\ 4\right),\ B\left(2;\ -3;\ 3\right),\ C\left(1;\ 4;\ -2\right) .
Найдите расстояние от точки B до середины отрезка AC.

4

 222\sqrt{2}  

 21\sqrt{21}  

 252\sqrt{5}  

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