
Geometría
Authored by ANGEL VIVANCO
Mathematics
1st - 3rd Grade
Used 8+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En una panadería, Esteban pago $7 por la compra de 5 panes y un queso, mientras que Elena pago $8 por la compra de 2 panes y 3 quesos de la misma calidad. ¿Cuánto cuesta cada pan y cada queso?
1 y 2
2 y 3
1 y 3
2 y 4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Para sumar las matrices A,B
A y B deben tener el mismo numero de filas y el mismo numero de columnas
Ninguna
A y B debe tener el mismo numero de filas
A y B debe tener el mismo numero de columnas
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Si en una matriz cuadrada A no nula, todos los elementos de su diagonal son ceros, ¿Cuál de las siguientes afirmaciones son falsas?
A puede ser simetrica
A puede ser una matriz identidad
Ninguna
A puede ser una matriz triangular superior
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sea A una matriz no nula. Seleccione la opción correcta
Determinante (A) puede ser cero
Determinante(AA)=Determinante(A)*Determinante(A)
Existe el determinante de A
Determinante(A) es diferente de cero
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El determinante de una matriz identidad de orden n es:
Ninguna
-1
1
n
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere las ecuaciones x-2y=1 , 2y-x=-1 , escoja la opción correcta
Ninguna
x=7 y=3
x=0 y=0.5
x=1 y=0
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considere las ecuaciones x-2y=1 , 2x-2y=0 escoja la opción correcta
x=3 y=1
Ninguna
x=-1 y=-1
x=0 y=1
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