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表达式17: "F" Subscript, 1 , Baseline equals "E" Subscript, 1 , Baseline minus left parenthesis, "D" Subscript, 2 , Baseline minus "E" Subscript, 2 , Baseline , right parenthesis
F
1
=
E
1
−
D
2
−
E
2
equals
=
23.0 5 5 7 2 8 0 9
2
3
.
0
5
5
7
2
8
0
9
17
表达式18: "F" Subscript, 2 , Baseline equals "E" Subscript, 2 , Baseline plus left parenthesis, "D" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , right parenthesis
F
2
=
E
2
+
D
1
−
E
1
equals
=
28.9 4 4 2 7 1 9 1
2
8
.
9
4
4
2
7
1
9
1
18
表达式19: "G" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline minus left parenthesis, "D" Subscript, 2 , Baseline minus "E" Subscript, 2 , Baseline , right parenthesis
G
1
=
D
1
−
D
2
−
E
2
equals
=
32
3
2
19
表达式20: "G" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline plus left parenthesis, "D" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , right parenthesis
G
2
=
D
2
+
D
1
−
E
1
equals
=
8.9 4 4 2 7 1 9 1
8
.
9
4
4
2
7
1
9
1
20
表达式21: "m" Subscript, 1 , Baseline equals StartFraction, "F" Subscript, 2 , Baseline minus "E" Subscript, 2 , Baseline Over "F" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , EndFraction
m
1
=
F
2
−
E
2
F
1
−
E
1
equals
=
0.4 4 7 2 1 3 5 9 5 5
0
.
4
4
7
2
1
3
5
9
5
5
21
表达式22: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesis plus "E" Subscript, 2 , Baseline
y
=
m
1
x
−
E
1
+
E
2
22
表达式23: "H" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline
H
1
=
D
1
equals
=
12
1
2
23
表达式24: "H" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline left parenthesis, "H" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , right parenthesis plus "E" Subscript, 2 , Baseline
H
2
=
m
1
H
1
−
E
1
+
E
2
equals
=
24
2
4
24
表达式25: "J" Subscript, 1 , Baseline equals "G" Subscript, 1 , Baseline
J
1
=
G
1
equals
=
32
3
2
25
表达式26: "J" Subscript, 2 , Baseline equals "H" Subscript, 2 , Baseline
J
2
=
H
2
equals
=
24
2
4
26
表达式27: "K" Subscript, 1 , Baseline equals "G" Subscript, 1 , Baseline
K
1
=
G
1
equals
=
32
3
2
27
表达式28: "K" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
K
2
=
A
2
equals
=
0
0
28
Graphs
Graphs
对学生隐藏该文件夹。
29
表达式30: polygon left parenthesis, "D" , "E" , "F" , "G" , right parenthesis
p
o
l
y
g
o
n
D
,
E
,
F
,
G
30
表达式31: polygon left parenthesis, "D" , "E" , "F" , "G" , right parenthesis
p
o
l
y
g
o
n
D
,
E
,
F
,
G
31
表达式32: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis
p
o
l
y
g
o
n
A
,
B
,
C
,
D
32
表达式33: polygon left parenthesis, "D" , "H" , "J" , "K" , right parenthesis
p
o
l
y
g
o
n
D
,
H
,
J
,
K
33
Points
Points
对学生隐藏该文件夹。
34
46
技术支持
技术支持
A
B
C
D
E
F
G
H
J
K
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
功能
(
(
)
)
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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