
Matrices: Inversa y operaciones

Quiz
•
Mathematics
•
12th Grade
•
Hard
Silvestre Osinaga
Used 10+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Al multiplicar una matriz cuadrada por su inversa, obtenemos:
Una matriz escalonada
Una matriz nula
La matriz unidad
El rango de una matriz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si A es 3x3, B es 2x3, entonces ABT es de orden...
2x3
No es posible realizar la operación
3x2
3x3
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Si A es de orden p x n y B es de orden n x p, entonces la matriz C de orden p x p es el resultado de la operación matricial de:
AB
A + B
A - B
AT + B
A + BT
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una matriz diagonal es aquella en la que ...
Los elementos situados por encima de la diagonal principal son 0.
Los elementos de encima y debajo de la diagonal principal son 0.
Los elementos de la diagonal principal son iguales.
Los elementos de la diagonal principal son iguales a 1.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Halle la matriz inversa de A
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Indique cuál es la matriz cuadrada de orden 3 que cumple las condiciones:
a) Los elementos de la segunda columna son 1
b) Los elementos de la tercera fila son: 2,1,3
c) a11=a22+a33
d) a13=a31
e) a12=a21
f) a23=a21-a22
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Al calcular la inversa de la matriz A, el único valor que no aparece en dicha inversa corresponde a:
-6
-8
2
4
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