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Trigonometry Placement

(Trigonometric Functions and Identities)
1. Which of the following is equivalent to (1 - cosine squared of theta) over cosine squared of theta ?
 A.  sec2theta
B.  (csc2theta) - 1
C.  tan2theta
D.  sin2theta
E.  - (1 over sine squared of theta)
 
(Right-Triangle Trigonometry)
2. From a point on the ground the angle of elevation to a ledge on a building is 27o, and the distance to the base of the building is 45 meters. How many meters high is the ledge?
  >A. 45 over sine of 27 degrees
B. 45 over tangent of 27 degrees
C.  45 sin 27o
D.  45 cos 27o
E.  45 tan 27o
 		diagram of building

Answers:

1. C 2. E

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