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0 < DBE = BCE < 45
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Expression 13: "D" Subscript, "E" , Baseline equals distance left parenthesis, "D" , "E" , right parenthesis
D
E
=
d
i
s
t
a
n
c
e
D
,
E
equals
=
1.3 7 4 4 6 1 2 5 7 8 9
1
.
3
7
4
4
6
1
2
5
7
8
9
13
Expression 14: "C" Subscript, "D" , Baseline equals distance left parenthesis, "C" , "D" , right parenthesis
C
D
=
d
i
s
t
a
n
c
e
C
,
D
equals
=
5.4 7 8 5 1 3 0 1 3 3 9
5
.
4
7
8
5
1
3
0
1
3
3
9
14
Coordinates etc.
Coordinates etc.
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15
Expression 16: "A" Subscript, 1 , Baseline equals StartRoot, 0 , EndRoot
A
1
=
0
equals
=
0
0
16
Expression 17: "A" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot
A
2
=
0
equals
=
0
0
17
Expression 18: "B" Subscript, 1 , Baseline equals StartRoot, 0 , EndRoot
B
1
=
0
equals
=
0
0
18
Expression 19: "C" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
C
2
=
A
2
equals
=
0
0
19
Expression 20: "D" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline
D
1
=
A
1
equals
=
0
0
20
Expression 21: StartFraction, "D" Subscript, "B" "E" , Baseline Over "B" Subscript, "C" "E" , Baseline , EndFraction tilde 1
D
B
E
B
C
E
~
1
21
Expression 22: "E" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus StartFraction, "C" Subscript, "E" , Baseline Over "C" Subscript, "D" , Baseline , EndFraction left parenthesis, "D" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline , right parenthesis
E
1
=
C
1
+
C
E
C
D
D
1
−
C
1
equals
=
negative 1.2 5 4 4 1 0 8 7 2 5 6
−
1
.
2
5
4
4
1
0
8
7
2
5
6
22
Expression 23: "E" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus StartFraction, "C" Subscript, "E" , Baseline Over "C" Subscript, "D" , Baseline , EndFraction left parenthesis, "D" Subscript, 2 , Baseline minus "C" Subscript, 2 , Baseline , right parenthesis
E
2
=
C
2
+
C
E
C
D
D
2
−
C
2
equals
=
2.8 0 1
2
.
8
0
1
23
Graphs
Graphs
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24
Expression 25: polygon left parenthesis, "A" , "B" , "C" , "E" , "B" , "A" , "C" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
C
,
E
,
B
,
A
,
C
25
Points
Points
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26
37
powered by
powered by
A
B
C
D
E
"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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