表达式15: "D" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline plus StartFraction, 2 Over distance left parenthesis, "A" , "C" , right parenthesis , EndFraction left parenthesis, "C" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , right parenthesisD1=A1+2distanceA,CC1−A1
equals=
1.9 3 1 8 5 1 6 5 2 5 81.93185165258
15
表达式16: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline plus StartFraction, 2 Over distance left parenthesis, "A" , "C" , right parenthesis , EndFraction left parenthesis, "C" Subscript, 2 , Baseline minus "A" Subscript, 2 , Baseline , right parenthesisD2=A2+2distanceA,CC2−A2
equals=
0.5 1 7 6 3 8 0 9 0 2 0 50.517638090205
16
表达式17: "C" Subscript, 1 , Baseline equals "M" Subscript, 1 , Baseline plus "R" cosine left parenthesis, 180 minus "B" Subscript, "M" "C" , Baseline , right parenthesisC1=M1+Rcos180−BMC
equals=
0.2 5 8 8 1 9 0 4 5 1 0 30.258819045103
17
表达式18: "C" Subscript, 2 , Baseline equals "M" Subscript, 2 , Baseline plus "R" sine left parenthesis, 180 minus "B" Subscript, "M" "C" , Baseline , right parenthesisC2=M2+Rsin180−BMC
equals=
0.9 6 5 9 2 5 8 2 6 2 8 90.965925826289
18
Graphs
对学生隐藏该文件夹。
19
表达式20: 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： 2 "A" Subscript, "B" "C" , Baseline2ABC
20
表达式21: polygon left parenthesis, "A" , "B" , "C" , right parenthesispolygonA,B,C
21
表达式22: polygon left parenthesis, "B" , "D" , right parenthesispolygonB,D
