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177217518
Trig. Key Angles
Name __________
#1.
\(\cot 300°\)
\(-1\)
\(-\frac{\sqrt{3}}{3}\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
#2.
\(\sec \frac{\pi}{6}\)
\(0\)
\(1\)
\(\frac{2\sqrt{3}}{3}\)
\(\sqrt{2}\)
#3.
\(\cot \frac{5\pi}{2}\)
\(-\frac{\sqrt{3}}{2}\)
\(0\)
\(\frac{\sqrt{2}}{2}\)
\(\frac{\sqrt{3}}{2}\)
#4.
\(\cot 315°\)
\(-1\)
\(-\frac{1}{2}\)
\(-\sqrt{2}\)
\(2\)
#5.
\(\sec 120°\)
\(-2\)
\(-\sqrt{3}\)
\(\frac{\sqrt{2}}{2}\)
\(\frac{\sqrt{3}}{2}\)
#6.
\(\sin \frac{-23\pi}{6}\)
\(-1\)
\(-\frac{2\sqrt{3}}{3}\)
\(2\)
\(\frac{1}{2}\)
#7.
\(\csc 0\)
\(-1\)
\(\frac{1}{2}\)
\(\frac{\sqrt{2}}{2}\)
\(undefined\)
#8.
\(\cos 270°\)
\(-\sqrt{3}\)
\(0\)
\(1\)
\(\frac{\sqrt{2}}{2}\)
#9.
\(\csc 270°\)
\(-1\)
\(-\frac{2\sqrt{3}}{3}\)
\(2\)
\(\sqrt{2}\)
#10.
\(\csc \frac{5\pi}{4}\)
\(-\sqrt{2}\)
\(-\sqrt{3}\)
\(\frac{1}{2}\)
\(undefined\)
#11.
\(\sin \frac{-23\pi}{6}\)
\(\frac{1}{2}\)
\(\frac{\sqrt{2}}{2}\)
\(\sqrt{3}\)
\(undefined\)
#12.
\(\sec \frac{\pi}{2}\)
\(-\frac{\sqrt{2}}{2}\)
\(2\)
\(\frac{\sqrt{3}}{3}\)
\(undefined\)
#13.
\(\tan 2\pi\)
\(-2\)
\(-\frac{2\sqrt{3}}{3}\)
\(0\)
\(1\)
#14.
\(\sin 45°\)
\(-\frac{1}{2}\)
\(-\frac{\sqrt{2}}{2}\)
\(1\)
\(\frac{\sqrt{2}}{2}\)
#15.
\(\cot \frac{\pi}{3}\)
\(-\frac{\sqrt{3}}{2}\)
\(1\)
\(\frac{1}{2}\)
\(\frac{\sqrt{3}}{3}\)
#16.
\(\cos \frac{-23\pi}{6}\)
\(-\frac{2\sqrt{3}}{3}\)
\(\frac{\sqrt{2}}{2}\)
\(\frac{\sqrt{3}}{2}\)
\(\sqrt{2}\)
#17.
\(\cos 300°\)
\(-2\)
\(2\)
\(\frac{1}{2}\)
\(\frac{\sqrt{3}}{2}\)
#18.
\(\cos \frac{11\pi}{6}\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
\(\sqrt{2}\)
\(\sqrt{3}\)
#19.
\(\cot 30°\)
\(\frac{2\sqrt{3}}{3}\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
\(\sqrt{3}\)
#20.
\(\csc 30°\)
\(-\frac{\sqrt{2}}{2}\)
\(-\frac{\sqrt{3}}{3}\)
\(2\)
\(\frac{2\sqrt{3}}{3}\)
1
A
B
C
D
2
A
B
C
D
3
A
B
C
D
4
A
B
C
D
5
A
B
C
D
6
A
B
C
D
7
A
B
C
D
8
A
B
C
D
9
A
B
C
D
10
A
B
C
D
11
A
B
C
D
12
A
B
C
D
13
A
B
C
D
14
A
B
C
D
15
A
B
C
D
16
A
B
C
D
17
A
B
C
D
18
A
B
C
D
19
A
B
C
D
20
A
B
C
D