表达式18: "P" Subscript, 1 , Baseline equals "M" Subscript, 1 , Baseline plus "R" cosine left parenthesis, 90 minus 2 "B" Subscript, "M" "C" , Baseline , right parenthesisP1=M1+Rcos90−2BMC
equals=
44
18
表达式19: "P" Subscript, 2 , Baseline equals "M" Subscript, 2 , Baseline plus "R" sine left parenthesis, 90 minus 2 "B" Subscript, "M" "C" , Baseline , right parenthesisP2=M2+Rsin90−2BMC
equals=
22
19
Graphs
对学生隐藏该文件夹。
20
表达式21: "y" less than 25y<25
21
表达式22: polygon left parenthesis, "C" , "D" , "P" , right parenthesispolygonC,D,P
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表达式23: left parenthesis, "M" Subscript, 1 , Baseline plus "R" cos "t" , "M" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisM1+Rcost,M2+Rsint
定义域t最小值： negative 90−90
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, "A" , "B" , "C" , "M" , "P" , "D" , "P" , "C" , "D" , right parenthesispolygonA,B,C,M,P,D,P,C,D
