Trigonometry Answers

use of trigonometry in our daily life

Select the graph of g(x)=3csc1/3x . Then describe the graph of g as a transformation of the graph of f(x)=cscx 

Which natural phenomenon is the best example of periodic behavior

From the top of an 80-ft. building, the angle of elevation of the top of a taller building is 49 and

the angle of depression of the base of this building is 62. Determine the height of the taller

building to the nearest foot.

62°

49°

80 ft.

a. 211 ft. b. 112 ft. c. 129 ft. d. 276 ft.

Determine the measures of and to the nearest tenth of a degree, and the length of side

AB to one decimal place.

A B

C

3

4

D

A= C=

Side

AB=

A balloon is flying at the end of a 170-m length of string, which is anchored to the ground. The

angle of inclination of the string is 50. Calculate the height of the balloon relative to the ground,

to the nearest metre.

a. 130 m b. 143 m c. 109 m d. 222 m

5. Determine the length of XY to the nearest tenth of a centimetre.

61°

17.4 cm

Y X

Z

a. 8.4 cm b. 15.2 cm c. 31.4 cm d. 19.9 cm

A function  of period  defined by

​ ​

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 Vector has magnitude of 20 km with quadrant bearing S 30° W and vector has magnitude of 35 km with quadrant bearing N 67°W. 

Solve (sinx)sec^2(x)+(cos x)cosec^2 (x)=0.