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EXAMEN 2 UES DIDACTICA DE LA GEOMETRIA

Authored by LORENZO ARCIDES BOLAÑOS CORTEZ

Mathematics

University

Used 2+ times

EXAMEN 2 UES DIDACTICA DE LA GEOMETRIA
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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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