AnswersIC Pre-Cal - DeeringAngles and Trigonometric Functions

Angles and Trigonometric Functions Answers

8 verified answers
4

What is cos(3π)?

A
1
B
0
C
–1
D
–2
6

Using the unit circle, on what interval is the cosine function increasing?

A
(0, StartFraction pi Over 2 EndFraction)
Option A
B
(0, pi)
Option B
C
(StartFraction pi Over 2 EndFraction, StartFraction 3 pi Over 2 EndFraction)
Option C
D
(pi, 2 pi)
Option D
7

What is the value of ?

Question illustration
A
Negative StartFraction StartRoot 3 EndRoot Over 2 EndFraction
Option A
B
Negative one-half
Option B
C
One-half
Option C
D
StartFraction StartRoot 3 EndRoot Over 2 EndFraction
Option D
8

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