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表达式18: "D" Subscript, 1 , Baseline equals "R" cosine left parenthesis, "L" left bracket, 4 , right bracket , right parenthesis
D
1
=
R
c
o
s
L
4
equals
=
negative 6
−
6
18
表达式19: "D" Subscript, 2 , Baseline equals "R" sine left parenthesis, "L" left bracket, 4 , right bracket , right parenthesis
D
2
=
R
s
i
n
L
4
equals
=
0
0
19
表达式20: "E" Subscript, 1 , Baseline equals "R" cosine left parenthesis, "L" left bracket, 5 , right bracket , right parenthesis
E
1
=
R
c
o
s
L
5
equals
=
negative 3
−
3
20
表达式21: "E" Subscript, 2 , Baseline equals "R" sine left parenthesis, "L" left bracket, 5 , right bracket , right parenthesis
E
2
=
R
s
i
n
L
5
equals
=
negative 5.1 9 6 1 5 2 4 2 2 7 1
−
5
.
1
9
6
1
5
2
4
2
2
7
1
21
表达式22: "M" Subscript, 1 , Baseline equals StartFraction, "D" Subscript, 1 , Baseline plus "E" Subscript, 1 , Baseline Over 2 , EndFraction
M
1
=
D
1
+
E
1
2
equals
=
negative 4.5
−
4
.
5
22
表达式23: "M" Subscript, 2 , Baseline equals StartFraction, "D" Subscript, 2 , Baseline plus "E" Subscript, 2 , Baseline Over 2 , EndFraction
M
2
=
D
2
+
E
2
2
equals
=
negative 2.5 9 8 0 7 6 2 1 1 3 5
−
2
.
5
9
8
0
7
6
2
1
1
3
5
23
表达式24: "m" Subscript, 1 , Baseline equals StartFraction, "B" Subscript, 2 , Baseline minus "M" Subscript, 2 , Baseline Over "B" Subscript, 1 , Baseline minus "M" Subscript, 1 , Baseline , EndFraction
m
1
=
B
2
−
M
2
B
1
−
M
1
equals
=
1.0 3 9 2 3 0 4 8 4 5 4
1
.
0
3
9
2
3
0
4
8
4
5
4
24
表达式25: "y" equals "D" Subscript, 2 , Baseline
y
=
D
2
equals
=
0
0
25
表达式26: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "M" Subscript, 1 , Baseline , right parenthesis plus "M" Subscript, 2 , Baseline
y
=
m
1
x
−
M
1
+
M
2
26
表达式27: "m" Subscript, 1 , Baseline left parenthesis, "P" Subscript, 1 , Baseline minus "M" Subscript, 1 , Baseline , right parenthesis plus "M" Subscript, 2 , Baseline tilde "P" Subscript, 2 , Baseline
m
1
P
1
−
M
1
+
M
2
~
P
2
27
表达式28: "P" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline
P
2
=
D
2
equals
=
0
0
28
Graphs
Graphs
对学生隐藏该文件夹。
29
表达式30: polygon left parenthesis, "B" , "C" , "D" , "P" , right parenthesis
p
o
l
y
g
o
n
B
,
C
,
D
,
P
30
隐藏 标签 left parenthesis, "R" cos "L" , "R" sin "L" , right parenthesis
R
c
o
s
L
,
R
s
i
n
L
标签
equals
=
left parenthesis, 6 , 0 , right parenthesis
6
,
0
left parenthesis, 3 , 5.1 9 6 , right parenthesis
3
,
5
.
1
9
6
left parenthesis, negative 3 , 5.1 9 6 , right parenthesis
−
3
,
5
.
1
9
6
left parenthesis, negative 6 , 0 , right parenthesis
−
6
,
0
left parenthesis, negative 3 , negative 5.1 9 6 , right parenthesis
−
3
,
−
5
.
1
9
6
left parenthesis, 3 , negative 5.1 9 6 , right parenthesis
3
,
−
5
.
1
9
6
left parenthesis, 6 , 0 , right parenthesis
6
,
0
31
表达式32: polygon left parenthesis, "M" , "B" , right parenthesis
p
o
l
y
g
o
n
M
,
B
32
表达式33: polygon left parenthesis, "D" , "A" , right parenthesis
p
o
l
y
g
o
n
D
,
A
33
表达式34: polygon left parenthesis, "B" , "O" , right parenthesis
p
o
l
y
g
o
n
B
,
O
34
表达式35: polygon left parenthesis, "C" , "P" , right parenthesis
p
o
l
y
g
o
n
C
,
P
35
Points
Points
对学生隐藏该文件夹。
36
49
技术支持
技术支持
O
A
B
C
D
E
M
P
R
"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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