Într-un sistem de coordonate xOy cu si versori ai axelor Ox și Oy, vectorul de poziție al punctului A(1,2) este egal cu:
Descompunerea unui vector

Quiz
•
Mathematics
•
9th Grade
•
Hard
Monica Nartea
Used 2+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Într-un sistem de coordonate xOy se consideră punctele A(-2,7) și B(1,8). Atunci coordonatele vectorului sunt:
(-3, -1)
(-1,15)
(3, 1)
(-1, 1)
3.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Modulul vectorului este egal cu:
7
6
5
4
4.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Dacă și atunci vectorul este egal cu:
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Afirmația "vectorii și sunt coliniari" este:
adevărată
falsă
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Se dau vectorii și . Afirmația "vectorii și sunt perpendiculari" este
adevărată
falsă
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
În reperul cartezian xOy se consideră punctele A(-1,2), B(2,-1), C(a ,0), D(2,1). Numărul real a pentru care vectorii și sunt coliniari este egal cu:
1
2
3
4
8.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Fie Aflați numărul a>0 știind că lungimea vectorului este 20.
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