表达式30: left parenthesis, "A" Subscript, 1 , Baseline , "A" Subscript, 2 , Baseline minus "t" 1 , right parenthesisA1,A2−t1
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
30
表达式31: left parenthesis, "C" Subscript, 1 , Baseline , "C" Subscript, 2 , Baseline minus "t" "R" , right parenthesisC1,C2−tR
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
31
表达式32: polygon left parenthesis, "O" , "P" , right parenthesispolygonO,P
32
表达式33: left parenthesis, "C" Subscript, 1 , Baseline plus "R" cos "t" , "C" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisC1+Rcost,C2+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, "B" Subscript, 1 , Baseline plus "R" Subscript, 2 , Baseline cos "t" , "B" Subscript, 2 , Baseline plus "R" Subscript, 2 , Baseline sin "t" , right parenthesisB1+R2cost,B2+R2sint
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, "A" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "A" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesisA1+R1cost,A2+R1sint
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
