c in Terms of a and b

運算式 17: "B" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

運算式 18: "C" Subscript, 1 , Baseline equals "a" cosine 120

equals

negative 4.5

運算式 19: "C" Subscript, 2 , Baseline equals "a" sine 120

equals

7.7 9 4 2 2 8 6 3 4 0 6

運算式 20: "D" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline

equals

negative 4.5

運算式 21: "D" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

運算式 22: "E" Subscript, 1 , Baseline equals "L" Subscript, 1 , Baseline plus "b"

equals

運算式 23: "E" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

運算式 24: "L" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

運算式 25: "M" Subscript, 1 , Baseline equals "L" Subscript, 1 , Baseline plus "b" plus "c"

equals

運算式 26: "M" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline

equals

Graphs

運算式 28: "y" less than 25

運算式 29: polygon left parenthesis, "C" , "O" , right parenthesis

運算式 30: left parenthesis, "a" cos "t" , "a" sin "t" , right parenthesis

定義域 t 最小值：

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

定義域 t 最大值： 180

運算式 31: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis

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

定義域 t 最小值：

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

定義域 t 最大值： 180

運算式 33: left parenthesis, "M" Subscript, 1 , Baseline plus "c" cos "t" , "M" Subscript, 2 , Baseline plus "c" sin "t" , right parenthesis

定義域 t 最小值：

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

定義域 t 最大值： 180

Points

技術支援

b / 2