Express in terms of sinƟ or cosƟ where 0≤Ɵ<2π. (Find a co-terminal path between 0 and 2π .)

\sin\left(\frac{5\pi}{3}\right)

What is trigonometry? (Answer fast in this Quiz)

The study of triangles and the circular functions

What is a periodic function, and what is the period?

A function whose range repeats; the length of a cycle on a function's graph

What in the name of Heney is this?

A rather poor rendition of Michelangelo's "Creation of Adam"

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Trigonometry: Unit 1 Review

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NHS Trigonometry review for Unit 1.

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Questions 16

Answers

1
Express in terms of sinƟ or cosƟ where 0≤Ɵ<2π. (Find a co-terminal path between 0 and 2π .)
\sin\left(\frac{2\pi}{3}\right)
-\frac{\sqrt{3}}{2}
\sin\left(\frac{5\pi}{3}\right)
\sin\left(\frac{35\pi}{3}\right)
2
Express in terms of sinƟ or cosƟ where 0 < Ɵ < π/2.
If you pick this answer instead of the right one, you'll still get points
\cos\frac{\pi}{5}
\sin\frac{6\pi}{5}
\sin\frac{\pi}{5}
3
What is trigonometry? (Answer fast in this Quiz)
Painful.
The study of angles in all shapes, particularly circles
The study of triangles and the circular functions
The study of the unit circle
4
Verify.
\frac{1}{2}=\frac{1}{2}
\frac{\sqrt{3}}{2}=\frac{\sqrt{3}}{2}
-\frac{1}{2}=-\frac{1}{2}
The sides aren't equal to one another.
5
(calculator) Evaluate.
1
.48
.8869
.8870
6
True or false?
False
True
7
Verify.
\frac{3}{2}=\frac{3}{2}
\frac{-3\sqrt{3}}{2}=\frac{-3\sqrt{3}}{2}
The sides aren't equal to one another.
\frac{3\sqrt{3}}{2}=\frac{3\sqrt{3}}{2}
8
Express in terms of sinƟ or cosƟ where 0≤Ɵ<2π.
\cos\left(\frac{\pi}{5}\right)
\cos\left(\frac{-69\pi}{5}\right)
\cos\left(\frac{4\pi}{5}\right)
.8090
9
Express in terms of sinƟ or cosƟ where 0 < Ɵ < π/2.
\cos\frac{\pi}{4}
\cos\frac{\pi}{3}
-\cos\frac{\pi}{3}
-\cos\frac{\pi}{4}
10
What is a periodic function, and what is the period?
A function which stops after reaching a terminal point; the terminal point
A function whose range repeats; the length of a cycle on a function's graph
A function that periodically changes; the interval at which it changes
A circular function; the length of a cycle on the circle
11
True or False?
True
False
12
Blast from the Past: What is the domain of this function?
{2, 3, 5}
{1, 2, 4}
(5, 2, 3}
{2, 4, 1}
13
What is the domain of sinƟ?
Z
***The Public Domain***
-1 ≤ sinƟ ≤ 1
R
14
What in the name of Heney is this?
Two stick men trynna give each other a high five
A rather poor rendition of Michelangelo's "Creation of Adam"
A rather poor rendition of the Sistine Chapel ceiling
Trigonometry.
15
Find sinƟ...
-\frac{7}{4}
\frac{7}{4}
\frac{\sqrt{7}}{4}
-\frac{\sqrt{7}}{4}
16
Find cosƟ...
\frac{2}{5}
\frac{3}{5}
-\frac{3}{5}
-\frac{2}{5}

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