表达式30: left parenthesis, "L" Subscript, 1 , Baseline plus "R" cos "t" , "L" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisL1+Rcost,L2+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： 360360
30
表达式31: left parenthesis, "K" Subscript, 1 , Baseline plus "R" cos "t" , "K" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisK1+Rcost,K2+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： 360360
31
表达式32: left parenthesis, "M" Subscript, 1 , Baseline plus "R" cos "t" , "M" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisM1+Rcost,M2+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： 360360
32
表达式33: left parenthesis, "M" Subscript, 1 , Baseline plus "R" cos "t" , "M" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisM1+Rcost,M2+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： 360360
33
表达式34: left parenthesis, "K" Subscript, 1 , Baseline plus "R" cos "t" , "K" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisK1+Rcost,K2+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： 360360
34
表达式35: left parenthesis, "L" Subscript, 1 , Baseline plus "R" cos "t" , "L" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisL1+Rcost,L2+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： 360360
35
表达式36: polygon left parenthesis, "A" , "C" , "A" , "B" , "C" , "D" , right parenthesispolygonA,C,A,B,C,D
