Blue Area = 25.0404465894| Desmos

式16: "L" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus StartFraction, "C" Subscript, "L" , Baseline Over "B" Subscript, "C" , Baseline , EndFraction left parenthesis, negative "C" Subscript, 1 , Baseline , right parenthesis

equals

10.8 3 2 8 8 5 2 8 3 1

式17: "L" Subscript, 2 , Baseline equals StartFraction, "C" Subscript, "L" , Baseline Over "B" Subscript, "C" , Baseline , EndFraction "B" Subscript, 2 , Baseline

equals

12.9 1 0 1 2 9 9 5 4 3

式18: "M" Subscript, 1 , Baseline equals StartFraction, "B" Subscript, 1 , Baseline plus "C" Subscript, 1 , Baseline Over 2 , EndFraction

equals

13.1 0 9 2 8 9 5 1 8 5

式19: "M" Subscript, 2 , Baseline equals StartFraction, "B" Subscript, 2 , Baseline plus "C" Subscript, 2 , Baseline Over 2 , EndFraction

equals

式20: "K" Subscript, 1 , Baseline equals "L" Subscript, 1 , Baseline plus cosine theta Subscript, 2 , Baseline

equals

9.8 3 6 6 9 0 5 8 5 0 4

式21: "K" Subscript, 2 , Baseline equals "L" Subscript, 2 , Baseline plus sine theta Subscript, 2 , Baseline

equals

12.8 2 2 9 7 4 2 1 1 6

式22: theta Subscript, 2 , Baseline equals 140 plus 45

equals

185

Graphs

式24: "y" less than 25

式25: polygon left parenthesis, "A" , "L" , "M" , right parenthesis

式26: polygon left parenthesis, "A" , "L" , "A" , "M" , "A" , "B" , "C" , right parenthesis

式27: left parenthesis, StartRoot, 2 , EndRoot "t" cos 45 , StartRoot, 2 , EndRoot sin 45 , right parenthesis

定義域t最小値:

less than or equal to "t" less than or equal to

定義域t最大値:

式28: left parenthesis, StartRoot, 2 , EndRoot cos 45 , StartRoot, 2 , EndRoot "t" sin 45 , right parenthesis

定義域t最小値:

less than or equal to "t" less than or equal to

定義域t最大値:

式29: left parenthesis, "K" Subscript, 1 , Baseline plus StartFraction, "t" cos left parenthesis, theta Subscript, 2 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, "t" sin left parenthesis, theta Subscript, 2 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis

定義域t最小値:

less than or equal to "t" less than or equal to

定義域t最大値:

式30: left parenthesis, "K" Subscript, 1 , Baseline plus StartFraction, "t" cos left parenthesis, theta Subscript, 2 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, "t" sin left parenthesis, theta Subscript, 2 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis

定義域t最小値:

less than or equal to "t" less than or equal to

定義域t最大値:

Points

提供：

BM = CM