表达式29: left parenthesis, cos "t" , sin "t" , right parenthesiscost,sint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 180180
29
表达式30: polygon left parenthesis, "F" , "H" , right parenthesispolygonF,H
30
表达式31: polygon left parenthesis, "E" , "G" , right parenthesispolygonE,G
31
表达式32: polygon left parenthesis, "C" , "D" , "E" , "F" , right parenthesispolygonC,D,E,F
32
表达式33: polygon left parenthesis, "C" , "D" , "E" , "F" , right parenthesispolygonC,D,E,F
33
表达式34: left parenthesis, "G" Subscript, 1 , Baseline plus "R" cos "t" , "G" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisG1+Rcost,G2+Rsint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 180180
34
表达式35: left parenthesis, "H" Subscript, 1 , Baseline plus "R" cos "t" , "H" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisH1+Rcost,H2+Rsint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 180180
35
表达式36: "R" equals 1 halfR=12
equals=
0.50.5
36
Points
对学生隐藏该文件夹。
37
50
技术支持
技术支持
O
A
B
C
D
E
F
G
H
Start black, 61.6 3 7 8 2 9 End black degrees61.637829°
