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What is Tau?
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Ratio of the circumference and the diameter
Ratio of the circumference and the diameter
5
Expression 6: "R" Subscript, "a" "t" "i" "o" , Baseline equals StartFraction, "c" Over "r" , EndFraction
R
a
t
i
o
=
c
r
equals
=
6.2 8 3 1 8 5 3 0 7 1 8
6
.
2
8
3
1
8
5
3
0
7
1
8
6
Expression 7: "x" squared plus "y" squared equals "r" squared
x
2
+
y
2
=
r
2
7
Ratio
Ratio
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Points
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20
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"R" "a" "t" "i" "o" equals tau
R
a
t
i
o
=
τ
left parenthesis, 4 , 0 , right parenthesis
4
,
0
( "r" StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction , "r" 1 half )
(
r
3
2
,
r
1
2
)
( "r" StartFraction, 1 Over StartRoot, 2 , EndRoot , EndFraction , "r" StartFraction, 1 Over StartRoot, 2 , EndRoot , EndFraction )
(
r
1
2
,
r
1
2
)
( "r" 1 half , "r" StartFraction, StartRoot, 3 , EndRoot Over 2 , EndFraction )
(
r
1
2
,
r
3
2
)
left parenthesis, 0 , 4 , right parenthesis
0
,
4
left parenthesis, negative 4 , 0 , right parenthesis
−
4
,
0
left parenthesis, 0 , negative 4 , right parenthesis
0
,
−
4
"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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