
EXAMEN 2 UES DIDACTICA DE LA GEOMETRIA
Authored by LORENZO ARCIDES BOLAÑOS CORTEZ
Mathematics
University
Used 2+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Para el triángulo que tiene vértices A (2, -5, 3), B (-1, 7, 0) y C (-4, 9, 7). Calcule: la longitud de cada lado.
7.87
15.75
12.73
17.75
2.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Para el triángulo que tiene vértices A (2, -5, 3), B (-1, 7, 0) y C (-4, 9, 7).Calcule los puntos medios de cada lado.
(-1,2,5)
(-2.5,8,3.5)
(0.5,1,1.5)
(5,8,2.5)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sean A (1,2,3), B (4,-3,-1), C (-5, -3, 5) y D (-2, 1, 6). Calcule: (a) C + 3D- 8A
(-5,-3,5)
(-19,-16,-1)
(-8,-16,-24)
(-6,3.18)
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sean A (1,2,3), B (4,-3,-1), C (-5, -3, 5) y D (-2, 1, 6). Calcule: IIAII IIBII (C-D)
(-3√364, -4√364, -√364)
(-√326, -4√326, -√326)
(-√364, -4√364, -√364)
(-3√326, -4√326, -√326)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sea A (4, 0, 2), B (5, 2, -1), Calcule: A.B
18
22
24
20
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sea A (-4, -2, 4), B (2, 7, -1), C (6, -3, 0), D (5, 4, -3)
Calcule: Cos ϴ, si ϴ es el ángulo entre A y C.
-2√5/5
-√5/5
√5/5
2√5/5
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sea A (-4, -2, 4), B (2, 7, -1), C (6, -3, 0), D (5, 4, -3)
Calcule: a) La componente de C en la dirección de A.
-5
3
-3
5
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