
Vectores en el espacio
Authored by Marisa Solano
Mathematics
12th Grade

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8 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dados los vectores u=(1, -2, 1), v=(-1, 3, 2), w=(5, -1, -3).
Indica cual de estas operaciones se cumple:
u + w -v = (7, 0, 0)
2u - w = (-3, -3, 5)
u + v - w = (-5, 2, 6)
u -3v = (-2, -8, -5)
Ninguna es correcta
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dados dos vectores u y v, es posible añadir otro vector w de forma que los tres formen una base del espacio.
Verdadero, siempre que w sea combinación lineal de u y v.
Verdadero, siempre que sean linealmente independientes.
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Si el producto escalar de dos vectores es negativo... (marca las correctas)
Los vectores son perpendiculares
el ángulo que forman es mayor que 180º
el ángulo que forman es negativo
el ángulo que forman es mayor que 90º
NINGUNA ES CORRECTA
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El ángulo que forman los vectores u (2, -2, 1) y v (3, 3, 1) es aproximadamente 67,52º
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Un vector perpendicular a u = (-1, 2, 2) y v = (2, 3, 1) es:
(4, 5, 7)
(4, -5, 7)
(-3, 5, -8)
(2, 3, 4)
(-8, 10, -14)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dados dos vectores perpendiculares y unitarios, el módulo de su producto vectorial es 0
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
EL volumen del tetraedro formado por los vértices A (x, 3, x), B(1, x-1, 2), C (0, 2, 0) y O (0, 0, 0) es 6 unidades cubicas si...
x=-18
x=-3
x=3
x=18
Ninguna es correcta
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