
Matrice
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
Cristina Bobaru
Used 5+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
O matrice de tipul 2x3 se poate aduna cu o matrice de tipul
3x2
2x2
3x3
2x3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementul neutru pentru înmulțirea matricelor este:
Matricea nulă
Matrice unitate
Transpusa matricei
Matricea pătratică
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Înmulțirea a două matrice este posibilă dacă:
Numărul de linii din prima matrice este egal cu numărul de coloane din matricea a doua
Matricele sunt patratice
Numărul de coloane din prima matrice este egal cu numărul de linii din matricea a doua
Matricele sunt de același tip
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă matricea A este de tipul 3x1 atunci ea nu poate fi înmulțită cu o matrice de tipul:
3x1
1x2
1x1
1x3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Matricea cu toate elementele zero este:
Matricea nulă
Matricea unitate
Matricea pătratică
Matricea linie
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementul a21 din matricea A este:
1
-3
2
-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suma numerelor naturale de pe diagonala secundară este:
8
1
2
3
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