Ch. 4 - Trigonometric Functions Quiz Review

Question 1

Determine the quadrant in which the angle 5π/4 lies?

Accepted Answer

Quadrant III

Question 2

Convert from 155o to radians.

Accepted Answer

31π/36

Question 3

Calculate the exact value of tan(13π).

Accepted Answer

0

Question 4

Find the exact value of the csc(−225o).

Accepted Answer

√2

Question 5

In right triangle ABC, a = 6 inches and c = 19 inches. C is the right angle. Determine angle A?

Accepted Answer

71.59°

Question 6

Which of the following is equivalent to 17π/10 in degrees?

Accepted Answer

306o

Question 7

What is the length of the radius with an arc of 45 cm intercepted by a 120o angle?

Accepted Answer

21.50 cm

Question 8

Which of the following angles is coterminal to −11π/4?

Accepted Answer

5π/4

Question 9

Calculate the exact value cos(150o).

Accepted Answer

−√3/2

Question 10

Which of the following angles is coterminal to 930o?

Accepted Answer

210o

Question 11

What is the land distance between the airplane and the airport?

Accepted Answer

56,713 ft

Question 12

If sin Θ=3/4 and the tan Θ < 0 , find cosΘ.

Accepted Answer

cos Θ = -√(7)/4

Question 13

Find the secΘ for this triangle.

Accepted Answer

25/24

Question 14

Find the reference angle for 484o.

Accepted Answer

56o

Question 15

The point (7, −2) is a point on the terminal side of Θ in standard position. Find sinΘ

Accepted Answer

−2√(53)/53

Questions 15