AnswersIC Pre-Cal - DeeringUnit Test

Unit Test Answers

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1
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Use the diagram to complete the statements.cos A =

A
5/13
B
12/13
C
5/12
D
12/5
2
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tan A =

A
5/13
B
12/13
C
5/12
D
12/5
3

sin(0°) =

A
–1
B
0
C
1
D
undefined
4

Find the coordinates of the point (a, b). a = ?

A
1
B
Option
C
Option
5

cos(270°) =

A
–1
B
0
C
1
D
undefined
6

cos(0°) =

A
–1
B
0
C
1
D
undefined
7

tan(0°) =

A
–1
B
0
C
1
D
undefined
8

Which of the following statements shows how to calculate the reference angle for

Question illustration
A
Option
B
Option
C
Option
9

θ = °

Answer:

45

10

b = ?

A
1
B
Option
C
Option
11

tan(270°) =

A
–1
B
0
C
1
D
undefined
12

tan(0°) =

A
–1
B
0
C
1
D
undefined
13

Question text not available

A
Option
B
Option
C
Option
14

Because −135° terminates in quadrant the sine value is negative.

A
I,
B
II,
C
III,
D
IV,

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