
Test de verificare
Authored by Mioara D
Mathematics
10th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Doi vectori sunt coliniari dacă
au coordonatele egale
sunt nuli
au coordonatele proporționale
au produsul scalar nul
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă doi vectori sunt perpendiculari, atunci:
produsul lor scalar este egal cu 1
produsul lor scalar este egal cu 0
sunt egali
sunt opuși
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă doi vectori formează un unghi(notat ∝) obtuz, atunci:
cos∝=0
cos∝>0
cos∝<0
cos∝=1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Produsul scalar a doi vectori este:
un vector
un număr complex
o mulțime de numere reale
un număr real
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se consideră punctele A (2;0),B(−1;4). Lungimea segmentului AB este egală cu:
5
√17
0
-3
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