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Introduction to Trigonometric Functions
Contribuido por: Kuester
Find the cos Θ
θ
13
5
Find x:
x

4.5

11.1

5.6

4.8

12
22
6
Find x.
x
32

8.7

 9.6 

3.7

11.3

45
x
7

7

14

14√2

7√2

Find x.
6
x
30

12

6

 6√3 

6√2

Find x.
Find x.

6

12

 6√2 

6√3

x
12
45
A
17
8
Find cot A
8
6
A

Find sec A. Write your

answer in lowest terms.

A
Find csc A.
25
24

0.4898

0.3254

0.9848

0.5471

Find cos 10

3.5871

0.8574

 2.7904

0.2358

Find csc 21∘.

1.2357

0.8579

4.2356

 0.4663
Find cot 65

Find sec 45

2

 √2

1/2

√3

An escalator rises at an angle of 30.  The length

of the escalator is 62 feet. Sketch a diagram of

the situation. What is the height of the escalator?

feet

As a 12-foot ladder leans against a building, it makes

a 58 angle with the ground.  Draw a diagram to

represent the situation.  How far is the bottom of the

ladder from the base of the building?

 ≈ 6.4 feet 

 ≈ 10.2 feet 

≈22.6 feet

≈19.2

A flagpole has a shadow that is 25 feet long.  The

angle of elevation from the end of the shadow to

the top of the flagpole is 50. How tall is the flagpole?

 

≈23.6 feet
≈34.8 feet
 ≈29.8 feet
≈19.2 feet
25 feet
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