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Vectores en R3 Final (Andes)

Authored by William Gonzalez

Mathematics

12th Grade

Used 21+ times

Vectores en R3 Final (Andes)
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9 questions

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1.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

Las coordenadas del punto P de la imagen son:

(4, -2, -3)

(4, -2, 3)

(-2, 4, 3)

(-3, 4, -2,)

2.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Dados los vectores:  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k}  y  b=2i5jk\overrightarrow{b}=2\overrightarrow{i}-5\overrightarrow{j}-\overrightarrow{k} el resultado de  a+b\overrightarrow{a}+\overrightarrow{b}  es:

 ij7k-\overrightarrow{i}-\overrightarrow{j}-7\overrightarrow{k}  

 i+j7k-\overrightarrow{i}+\overrightarrow{j}-7\overrightarrow{k}  

 i+j+7k-\overrightarrow{i}+\overrightarrow{j}+7\overrightarrow{k}  

 5i9j7k-5\overrightarrow{i}-9\overrightarrow{j}-7\overrightarrow{k}  

3.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Dados los vectores:  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k}  y  b=2i5jk\overrightarrow{b}=2\overrightarrow{i}-5\overrightarrow{j}-\overrightarrow{k} el resultado de  3a2b3\overrightarrow{a}-2\overrightarrow{b}  es:

 13i+22j16k-13\overrightarrow{i}+22\overrightarrow{j}-16\overrightarrow{k}  

 13i+22j20k-13\overrightarrow{i}+22\overrightarrow{j}-20k  

 5i+22j16k-5\overrightarrow{i}+22\overrightarrow{j}-16\overrightarrow{k}  

 13i+2j16k-13\overrightarrow{i}+2\overrightarrow{j}-16\overrightarrow{k}  

4.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Dados los vectores:  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k}  y  b=2i5jk\overrightarrow{b}=2\overrightarrow{i}-5\overrightarrow{j}-\overrightarrow{k} el resultado de  a×b\overrightarrow{a}\times\overrightarrow{b}  es:

 34i15j+7k-34\overrightarrow{i}-15\overrightarrow{j}+7\overrightarrow{k}  

 34i+15j+7k-34\overrightarrow{i}+15\overrightarrow{j}+7\overrightarrow{k}  

 34i+15j+7k34\overrightarrow{i}+15\overrightarrow{j}+7\overrightarrow{k}  

 26i15j7k-26\overrightarrow{i}-15\overrightarrow{j}-7\overrightarrow{k}  

5.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

El módulo del vector  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k} es:

 7,817,81  

 7,81-7,81  

 5,345,34  

 10,4910,49  

6.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Dados los vectores:  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k}  y  b=2i5jk\overrightarrow{b}=2\overrightarrow{i}-5\overrightarrow{j}-\overrightarrow{k} el resultado de  ab\overrightarrow{a}\cdot\overrightarrow{b}  es:

 20-20  

 34i15j+7k-34\overrightarrow{i}-15\overrightarrow{j}+7\overrightarrow{k}  

 34i+15j+7k34\overrightarrow{i}+15\overrightarrow{j}+7\overrightarrow{k}  

 3232  

7.

MULTIPLE SELECT QUESTION

15 mins • 1 pt

Dados los vectores:  a=3i+4j6k\overrightarrow{a}=-3\overrightarrow{i}+4\overrightarrow{j}-6\overrightarrow{k}  y  b=2i5jk\overrightarrow{b}=2\overrightarrow{i}-5\overrightarrow{j}-\overrightarrow{k} el ángulo entre estos vectores es:

 117,38°117,38\degree  

 43,59°43,59\degree  

 209,07°209,07\degree  

 165,43°165,43\degree  

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