表达式25: theta Subscript, 1 , Baseline equals tangent to the negative 1st power StartFraction, "C" Subscript, 2 , Baseline Over "C" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , EndFraction plus 45θ1=tan−1C2C1−E1+45
equals=
9090
25
Graphs
对学生隐藏该文件夹。
26
表达式27: "y" less than 25y<25
27
表达式28: polygon left parenthesis, "C" , "D" , "E" , right parenthesispolygonC,D,E
28
表达式29: left parenthesis, "K" Subscript, 1 , Baseline plus StartFraction, 0.4 "t" cos left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, 0.4 "t" sin left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisK1+0.4tcosθ1−1352,K2+0.4tsinθ1−1352
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, "K" Subscript, 1 , Baseline plus StartFraction, 0.4 "t" cos left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, 0.4 "t" sin left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisK1+0.4tcosθ1+1352,K2+0.4tsinθ1+1352
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: polygon left parenthesis, "C" , "D" , "E" , right parenthesispolygonC,D,E
31
表达式32: 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： 180180
32
表达式33: polygon left parenthesis, "A" , "B" , right parenthesispolygonA,B
