Trigonometria

UNIVERSIDAD NACIONAL AGRARIA LA MOLINA
CENTRO DE ESTUDIOS PREUNIVERSITARIOS

QUINTO SEMINARIO DE TRIGONOMETRIA

1. Según la figura y sabiendo que: [pic]
calcule “x”.

A) 1B) 2
C) 3
D) 4
E) 5

2. Sabiendo que:

[pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) [pic]

3. Si : [pic]; calcule : [pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) 34. Calcule el valor de:

[pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) [pic]

5. Reduzca la expresión:
[pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) [pic]

6.Del cuadrado ABCD mostrado, calcule
[pic]

A) 1
B) ½
C) 1/3
D) 1/4
E) 1/5

7. Sabiendo que :

[pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) [pic]

8. De la figuramostrada, AB = 16 y BD = 10. Calcule : Tanx

A) [pic]
B) [pic]
C) [pic]
D) 2
E) 3

9. Simplifique:

[pic]

A) [pic] B) [pic] C) 1
D) 2 E) 3

10.Calcule el valor de : [pic]

A) [pic] B) [pic] C) [pic]
D) [pic] E) [pic]

11. Halle el equivalente de:

M = [pic]

A) Tan5º B) Tan15º C) Tan20º
D) Tan25ºE) Tan35º

12. Si: [pic] , [pic]

A) 1/2 B) (1/2 C) [pic]
D) [pic] E) [pic]

13. Si: [pic] además:
[pic]

A) [pic] B) [pic] C) (1/2
D) 1/2 E) [pic]

14.Simplifique:
[pic]
A) Tan2( B) Cot2( C) Sec2(
D) Tan2( E) Cot2(

15. Dado: [pic]
Calcule:[pic]

A) 3/4 B) 4/3 C) 3/2 D) 2/3 E) -3

16. Calcule.
[pic]A) 1 B) -1 C) 2 D) [pic] E) [pic]

17. Calcule Sen15°

A) [pic] B) [pic] C) [pic] D) [pic] E) [pic]

18. Simplifique:
[pic]A)[pic] B) [pic] C) [pic]
D) [pic] E) [pic]
19. Indique lo incorrecto:

A) [pic]
B) [pic]
C) [pic]
D) [pic]
E) [pic]

20. Marque lo incorrecto:...