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1177438259
Trigonometry Key Angles
Name __________
#1.
\(\sec \frac{2\pi}{3}\)
\(-2\)
\(-\frac{\sqrt{2}}{2}\)
\(-\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
#2.
\(\csc \frac{11\pi}{6}\)
\(-2\)
\(\frac{\sqrt{2}}{2}\)
\(\sqrt{2}\)
\(undefined\)
#3.
\(\cot 240°\)
\(-1\)
\(-2\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
#4.
\(\sin \frac{5\pi}{6}\)
\(-\frac{\sqrt{3}}{3}\)
\(\frac{1}{2}\)
\(\frac{\sqrt{3}}{2}\)
\(\frac{\sqrt{3}}{3}\)
#5.
\(\sin \frac{3\pi}{2}\)
\(-1\)
\(2\)
\(\frac{1}{2}\)
\(\frac{\sqrt{3}}{3}\)
#6.
\(\tan 0°\)
\(-2\)
\(-\frac{2\sqrt{3}}{3}\)
\(0\)
\(\frac{2\sqrt{3}}{3}\)
#7.
\(\cot 300°\)
\(-1\)
\(-\frac{\sqrt{3}}{3}\)
\(\frac{\sqrt{3}}{2}\)
\(undefined\)
#8.
\(\csc \frac{5\pi}{4}\)
\(-\sqrt{2}\)
\(-\sqrt{3}\)
\(0\)
\(1\)
#9.
\(\csc 315°\)
\(-1\)
\(-\frac{2\sqrt{3}}{3}\)
\(-\sqrt{2}\)
\(\sqrt{3}\)
#10.
\(\csc 855°\)
\(-\frac{\sqrt{2}}{2}\)
\(-\sqrt{3}\)
\(\sqrt{2}\)
\(\sqrt{3}\)
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