
Matrices
Authored by MARIO DIAZ
Mathematics
1st - 12th Grade
Used 3+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué es una matriz?
Ordenamiento rectangular de números.
Una función FxC⟶R con F={1,…,m} y C={1,…,n}
Ambas son correctas.
Ninguna es correcta.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dos matrices A y B son iguales si y solo si:
Al menos una fila (columna) de A es igual a una de las filas (columnas) de B.
Las matrices son de igual dimensión y el elemento aij=bij, con 1≤i≤m y 1≤j≤n.
Al menos una fila (columna) de A es combinación lineal de una fila (columna) de B
Ninguna es correcta.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La matriz A es una matriz del tipo
Escalar
Diagonal
Nula
Identidad
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sean las matrices A y B de la imagen. Si A-2B=C la segunda fila de C es
(0 0)
(0 9)
(9 1)
(1 9)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dos matrices A y B son conformables si:
El n° de filas de A es igual al n° de columnas de B
A y B son de igual dimensión
El n° de columnas de A es igual al n° de filas de B
A y B son iguales
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dadas las matrices de la imagen. Si A.B=C, los elementos c23 y c12 son respectivamente:
-9 y 2
9 y 2
No se puede hacer la multiplicación pues A y B no son conformables.
-9 y 6
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