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Trigonometry: Reference Angles
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Main Slider
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168
Drag Points
Drag Points
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172
Angles
Angles
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270
Cosine
Cosine
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297
Sine
Sine
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powered by
powered by
0
0
StartFraction, pi Over 6 , EndFraction
π
6
StartFraction, pi Over 4 , EndFraction
π
4
StartFraction, pi Over 3 , EndFraction
π
3
StartFraction, pi Over 2 , EndFraction
π
2
StartFraction, 2 pi Over 3 , EndFraction
2
π
3
StartFraction, 3 pi Over 4 , EndFraction
3
π
4
StartFraction, 5 pi Over 6 , EndFraction
5
π
6
pi
π
StartFraction, 7 pi Over 6 , EndFraction
7
π
6
StartFraction, 5 pi Over 4 , EndFraction
5
π
4
StartFraction, 4 pi Over 3 , EndFraction
4
π
3
StartFraction, 3 pi Over 2 , EndFraction
3
π
2
StartFraction, 5 pi Over 3 , EndFraction
5
π
3
StartFraction, 7 pi Over 4 , EndFraction
7
π
4
StartFraction, 11 pi Over 6 , EndFraction
1
1
π
6
theta
θ
cosine theta
c
o
s
θ
sine theta
s
i
n
θ
0
0
pi / 2
π
/
2
3 pi / 4
3
π
/
4
pi / 4
π
/
4
2 pi / 3
2
π
/
3
pi / 3
π
/
3
5 pi / 6
5
π
/
6
negative pi / 6
−
π
/
6
pi / 6
π
/
6
0
0
1
1
negative StartRoot, 2 , EndRoot / 2
−
2
/
2
StartRoot, 2 , EndRoot / 2
2
/
2
1 / 2
1
/
2
negative 1 / 2
−
1
/
2
StartRoot, 3 , EndRoot / 2
3
/
2
StartRoot, 3 , EndRoot / 2
3
/
2
negative StartRoot, 3 , EndRoot / 2
−
3
/
2
0
0
1
1
StartRoot, 2 , EndRoot / 2
2
/
2
StartRoot, 2 , EndRoot / 2
2
/
2
StartRoot, 3 , EndRoot / 2
3
/
2
StartRoot, 3 , EndRoot / 2
3
/
2
1 / 2
1
/
2
1 / 2
1
/
2
negative 1 / 2
−
1
/
2
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
functions
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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