表达式20: theta Subscript, 1 , Baseline equals tangent to the negative 1st power StartFraction, "F" Subscript, 2 , Baseline Over "F" Subscript, 1 , Baseline , EndFraction plus 135θ1=tan−1F2F1+135
equals=
198.4 3 4 9 4 8 8 2 3198.434948823
20
Graphs
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21
表达式22: "y" less than 2000y<2000
22
表达式23: polygon left parenthesis, "A" , "F" , "B" , "F" , "A" , "B" , "E" , "D" , "E" , "C" , "D" , right parenthesispolygonA,F,B,F,A,B,E,D,E,C,D
23
表达式24: left parenthesis, "L" Subscript, 1 , Baseline plus StartFraction, 30 "t" cos left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "L" Subscript, 2 , Baseline plus StartFraction, 30 "t" sin left parenthesis, theta Subscript, 1 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisL1+30tcosθ1+1352,L2+30tsinθ1+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：
24
表达式25: left parenthesis, "L" Subscript, 1 , Baseline plus StartFraction, 30 "t" cos left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "L" Subscript, 2 , Baseline plus StartFraction, 30 "t" sin left parenthesis, theta Subscript, 1 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisL1+30tcosθ1−1352,L2+30tsinθ1−1352
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
