Math Quiz

FALL 20; PRECALCULUS; MATH 1113; QUIZ 03; FULL MARKS: 15 POINTS; DUE ON TUESDAY (10/27/2020) BY 11:30 PM ON D2L

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Name the quadrant in which the angle lies. 1) tan > 0, sin < 0 1)

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

2) cos < 0, csc < 0 2) A) I B) II C) III D) IV

3) cot < 0, cos > 0 3) A) I B) II C) III D) IV

4) sec < 0, tan < 0 4) A) I B) II C) III D) IV

5) cos > 0, csc < 0 5) A) I B) II C) III D) IV

Solve the problem. 6) Which of the following trigonometric values are negative?

I. sin(-292°) II. tan(-193°) III. cos(-207°) IV. cot 222°

6)

A) II and III B) II, III, and IV C) I and III D) III only

Find the exact value of the indicated trigonometric function of .

7) tan = - 8 5

, in quadrant II Find cos . 7)

A) - 5 89

89 B)

89 8

C) 5 89

89 D) -

89 5

8) sec = 3 2

, in quadrant IV Find tan . 8)

A) - 5

3 B) - 5 C) -

5 2

D) - 3 2

9) cos = 15 17

, 3 2

< < 2 Find cot . 9)

A) - 8 15

B) 17 15

C) - 15 2

2 D) -

15 8

10) cot = - 7 2

, cos < 0 Find csc . 10)

A) 53 2

B) 7 53

53 C) -

53 7

D) - 7 53

53

1

True of False

11) sin = 1 6

, sec < 0 Find tan < 0 11)

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Use the even-odd properties to find the exact value of the expression. Do not use a calculator. 12) tan (-30°) 12)

A) 3

3 B) - 3 C) 3 D) -

3 3

13) sin (-120°) 13)

A) - 3

2 B)

3 2

C) 1 2

D) -1 2

14) csc - 3

14)

A) 2 3

3 B) -2 C) 2 D) -

2 3 3

15) csc (-30°) 15)

A) 2 3

3 B) -2 C) -

2 3 3

D) 2

2