表达式26: left parenthesis, negative "t" "R" , 0 , right parenthesis−tR,0
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： 11
26
表达式27: left parenthesis, "A" Subscript, 1 , Baseline minus "t" "R" Subscript, 3 , Baseline , "A" Subscript, 2 , Baseline , right parenthesisA1−tR3,A2
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：
27
表达式28: left parenthesis, "A" Subscript, 1 , Baseline minus "t" "R" Subscript, 3 , Baseline , "A" Subscript, 2 , Baseline , right parenthesisA1−tR3,A2
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：
28
表达式29: left parenthesis, "B" Subscript, 1 , Baseline plus "t" "R" Subscript, 3 , Baseline , "B" Subscript, 2 , Baseline , right parenthesisB1+tR3,B2
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：
29
表达式30: left parenthesis, "C" Subscript, 1 , Baseline minus "t" "R" Subscript, 3 , Baseline , "C" Subscript, 2 , Baseline , right parenthesisC1−tR3,C2
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, "R" cos "t" , "R" sin "t" , right parenthesisRcost,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, "A" Subscript, 1 , Baseline plus "R" Subscript, 3 , Baseline cos "t" , "A" Subscript, 2 , Baseline plus "R" Subscript, 3 , Baseline sin "t" , right parenthesisA1+R3cost,A2+R3sint
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, "B" Subscript, 1 , Baseline plus "R" Subscript, 3 , Baseline cos "t" , "B" Subscript, 2 , Baseline plus "R" Subscript, 3 , Baseline sin "t" , right parenthesisB1+R3cost,B2+R3sint
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, "C" Subscript, 1 , Baseline plus "R" Subscript, 3 , Baseline cos "t" , "C" Subscript, 2 , Baseline plus "R" Subscript, 3 , Baseline sin "t" , right parenthesisC1+R3cost,C2+R3sint
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
Points
对学生隐藏该文件夹。
35
45
技术支持
技术支持
O
A
B
C
Start black, "R" Subscript, 3 , Baseline End blackR3
Start black, "R" Subscript, 3 , Baseline End blackR3
Start black, "R" Subscript, 3 , Baseline End blackR3
