表达式21: "H" Subscript, 2 , Baseline equals "s" sine "D" Subscript, "A" "H" , BaselineH2=ssinDAH
equals=
8.6 6 0 2 5 4 0 3 7 8 48.66025403784
21
Graphs
对学生隐藏该文件夹。
22
表达式23: left parenthesis, "s" cos "t" , "s" sin "t" , right parenthesisscost,ssint
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： 9090
23
表达式24: polygon left parenthesis, "B" , "H" , right parenthesispolygonB,H
24
表达式25: polygon left parenthesis, "E" , "H" , right parenthesispolygonE,H
25
表达式26: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesispolygonA,B,C,D
26
表达式27: left parenthesis, "F" Subscript, 1 , Baseline plus "R" cos "t" , "F" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisF1+Rcost,F2+Rsint
定义域t最小值： negative 90−90
less than or equal to "t" less than or equal to≤t≤
