Area of Red Triangle = ?

運算式 20: "E" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline plus 2 left parenthesis, "B" Subscript, 2 , Baseline minus "A" Subscript, 2 , Baseline , right parenthesis

equals

5.5 8 9 0 2 1 5 9 8 5 2

運算式 21: "F" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus 2 left parenthesis, "A" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline , right parenthesis

equals

negative 4.2 9 4 1 3 2 6 2 7 1 4

運算式 22: "F" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus 2 left parenthesis, "A" Subscript, 2 , Baseline minus "C" Subscript, 2 , Baseline , right parenthesis

equals

運算式 23: "m" Subscript, 1 , Baseline equals StartFraction, "E" Subscript, 2 , Baseline minus "F" Subscript, 2 , Baseline Over "E" Subscript, 1 , Baseline minus "F" Subscript, 1 , Baseline , EndFraction

equals

0.5 1 6 7 8 6 3 4 5 7 8 2

運算式 24: "y" equals "m" Subscript, 1 , Baseline left parenthesis, "x" minus "F" Subscript, 1 , Baseline , right parenthesis

運算式 25: "y" equals negative StartFraction, 1 Over "m" Subscript, 1 , Baseline , EndFraction left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis plus "D" Subscript, 2 , Baseline

運算式 26: "m" Subscript, 1 , Baseline left parenthesis, "x" minus "F" Subscript, 1 , Baseline , right parenthesis equals negative StartFraction, 1 Over "m" Subscript, 1 , Baseline , EndFraction left parenthesis, "x" minus "D" Subscript, 1 , Baseline , right parenthesis plus "D" Subscript, 2 , Baseline

運算式 27: "P" Subscript, 1 , Baseline equals StartFraction, "m" Subscript, 1 , Baseline "F" Subscript, 1 , Baseline plus StartNestedFraction, "D" Subscript, 1 , Baseline NestedOver "m" Subscript, 1 , Baseline , EndNestedFraction plus "D" Subscript, 2 , Baseline Over "m" Subscript, 1 , Baseline plus StartNestedFraction, 1 NestedOver "m" Subscript, 1 , Baseline , EndNestedFraction , EndFraction

equals

2.1 5 9 9 9 6 3 8 7 7 7

運算式 28: "P" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline left parenthesis, "P" Subscript, 1 , Baseline minus "F" Subscript, 1 , Baseline , right parenthesis

equals

3.3 3 5 4 0 5 7 4 8 8 2

Graphs

運算式 30: left parenthesis, "A" Subscript, 1 , Baseline plus "A" Subscript, "B" , Baseline cos "t" , "A" Subscript, 2 , Baseline plus "A" Subscript, "B" , Baseline sin "t" , right parenthesis

定義域 t 最小值： negative 180

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

定義域 t 最大值： 0

運算式 31: left parenthesis, "B" Subscript, 1 , Baseline plus "A" Subscript, "B" , Baseline cos "t" , "B" Subscript, 2 , Baseline plus "A" Subscript, "B" , Baseline sin "t" , right parenthesis

定義域 t 最小值： phi

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

定義域 t 最大值： 180 plus phi

運算式 32: left parenthesis, "C" Subscript, 1 , Baseline plus "B" Subscript, "C" , Baseline cos "t" , "C" Subscript, 2 , Baseline plus "B" Subscript, "C" , Baseline sin "t" , right parenthesis

定義域 t 最小值： negative StartFraction, 180 minus phi Over 2 , EndFraction

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

定義域 t 最大值： 180 minus StartFraction, 180 minus phi Over 2 , EndFraction

運算式 33: polygon left parenthesis, "B" , "D" , right parenthesis

運算式 34: polygon left parenthesis, "A" , "E" , right parenthesis

運算式 35: polygon left parenthesis, "C" , "F" , right parenthesis

運算式 36: polygon left parenthesis, "A" , "B" , "C" , right parenthesis

運算式 37: polygon left parenthesis, "D" , "E" , "F" , right parenthesis

運算式 38: polygon left parenthesis, "D" , "P" , right parenthesis

Points

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