Download Practice WS 14.1 – 14.3

Trig Ratios (14.1 – 14.3)
Names
1) Name a positive angle and a negative angle that is coterminal with 400.
For #2 – 4, find the sin and cos values for the given angle.
2) -1800
3) -300
4) 1350
5) What is the smallest possible value for sin θ?
6) What is the largest possible value for cos θ?
7) When is cos θ undefined?
8) When is csc θ undefined?
9) If sin θ = 0.8 and θ is in quadrant I, what is the value of cos θ?
10) If cos θ = -0.75 and θ is in quadrant II, what is the value of sin θ?
For #11 – 13, find the reference angle for the given angle.
11) 1250
12) 830
13) -2050
For #14 – 16, use your calculator to determine each of the following. Report answers to
4 decimal places.
14) sec (-1000)
15) cot 320
16) csc (-300)
17) Find two angles between 00 and 3600 that have a cos value of -0.8134.
18) The terminal ray of an angle in standard position contains the point (-5, 12) and
intersects the unit circle. Find the six trigonometric functions associated with this angle.
For #19 – 25, evaluate the given expression, leaving the answer in simple radical form.
19) sin 300 + cos 600
20) tan 1200 + cot (-300)
21) (sin 3000)(csc 3000)
22) 12 (sin 450)(cos 450)
23)
sec300
cos 300
25) (cos 450)(sin 2100) – (sin 300)(cos 1350)
24) cos2 450 – sin2 1350