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Which of the following is equivalent to ?

(A) 1

(B) sin n

(C) cos n

(D) cot n

(E) csc n

The Correct Answer
Explanation

In the following figure, what is the midpoint of ?

(A) (B) (C) (D) (E)

Correct Answer: A

Line T intersects parallel lines m and n. Angle measures are as shown in the figure below. What is the degree measure of imagea? image

(A)10° (B) 80° (C) 90° (D) 100° (E) 110°

Correct Answer: D

A scientist performs an experiment in which she measures four values two times each, with the following results:

(F) 0.5(G) 1(H) π(J) 2π(K) 4π

Correct Answer: H

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