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h = a b / ( a + b )
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Expression 14: "C" Subscript, 1 , Baseline equals "b"
C
1
=
b
equals
=
10
1
0
14
Expression 15: "C" Subscript, 2 , Baseline equals "a"
C
2
=
a
equals
=
4.1 7 5
4
.
1
7
5
15
Expression 16: "D" Subscript, 1 , Baseline equals "b"
D
1
=
b
equals
=
10
1
0
16
Expression 17: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 0
D
2
=
A
2
equals
=
0
0
17
Expression 18: "E" Subscript, 1 , Baseline equals "b" minus "h"
E
1
=
b
−
h
equals
=
7.0 5 4 6 7 3 7 2 1 3 4
7
.
0
5
4
6
7
3
7
2
1
3
4
18
Expression 19: "E" Subscript, 2 , Baseline equals "a" minus "h"
E
2
=
a
−
h
equals
=
1.2 2 9 6 7 3 7 2 1 3 4
1
.
2
2
9
6
7
3
7
2
1
3
4
19
Expression 20: "F" Subscript, 1 , Baseline equals "E" Subscript, 1 , Baseline
F
1
=
E
1
equals
=
7.0 5 4 6 7 3 7 2 1 3 4
7
.
0
5
4
6
7
3
7
2
1
3
4
20
Expression 21: "F" Subscript, 2 , Baseline equals "a"
F
2
=
a
equals
=
4.1 7 5
4
.
1
7
5
21
Expression 22: "G" Subscript, 1 , Baseline equals "b"
G
1
=
b
equals
=
10
1
0
22
Expression 23: "G" Subscript, 2 , Baseline equals "E" Subscript, 2 , Baseline
G
2
=
E
2
equals
=
1.2 2 9 6 7 3 7 2 1 3 4
1
.
2
2
9
6
7
3
7
2
1
3
4
23
Graphs
Graphs
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24
Expression 25: "y" less than 20 Has graph. To audio trace, press ALT+T.
y
<
2
0
25
Expression 26: polygon left parenthesis, "A" , "B" , "D" , "B" , "F" , "E" , "F" , "C" , "B" , "C" , "G" , "E" , "G" , "D" , right parenthesis Has graph.
p
o
l
y
g
o
n
A
,
B
,
D
,
B
,
F
,
E
,
F
,
C
,
B
,
C
,
G
,
E
,
G
,
D
26
Points
Points
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27
40
powered by
powered by
A
B
C
D
E
F
G
a
h
h
b
"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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