Vectori-test

Vectori-test

9th - 12th Grade

5 Qs

quiz-placeholder

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Vectori-test

Vectori-test

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Hard

Created by

R D

Used 14+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

 Calculati u  in functie de a  si b Calculati\ \overrightarrow{u\ }\ in\ functie\ de\ \overrightarrow{a\ }\ si\ \overrightarrow{b\ }  

 u = a +b \overrightarrow{u\ }=\ \overrightarrow{a\ }+\overrightarrow{b\ }  

 u =a b \overrightarrow{u\ }=\overrightarrow{a\ }-\overrightarrow{b\ }  

 u  = b a \overrightarrow{u\ }\ =\ \overrightarrow{b\ }-\overrightarrow{a\ }  

 u  = a b \overrightarrow{u\ }\ =\ \overrightarrow{a\ }-\overrightarrow{b\ }  

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Daca M este mijlocul segmentului [AB] atunci:

[AM] = mediana in Δ\Delta ABC

m =12(u +v )\overrightarrow{m\ }=\frac{1}{2}\left(\overrightarrow{u\ }+\overrightarrow{v\ }\right)

m =12(u v )\overrightarrow{m\ }=\frac{1}{2}\left(\overrightarrow{u\ }-\overrightarrow{v\ }\right)

m =12(v u )\overrightarrow{m\ }=\frac{1}{2}\left(\overrightarrow{v\ }-\overrightarrow{u\ }\right)

Triunghiul este isoscel.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

  \  Daca, in patratul ABCD, se dau coordonatele punctelor:  A(1;5)  si  C(5;1), sa se determine componentele vectorului   DB \overrightarrow{DB\ }  

(5;5)

(4;4)

(5;4)

(1;5)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 AB +CD +FE +DF +BC =\overrightarrow{AB\ }+\overrightarrow{CD\ }+\overrightarrow{FE\ }+\overrightarrow{DF\ }+\overrightarrow{BC\ }=  

 AF \overrightarrow{AF\ }  

 AE \overrightarrow{AE\ }  

 DE \overrightarrow{DE\ }  

 FD \overrightarrow{FD\ }  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

  \   Daca A(3;4), atunci  OA \left|\overrightarrow{OA\ }\right|  =


3

4

5

Nu se poate calcula.

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