DE = X = 16.2249721603

表达式12: "C" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline minus "B" Subscript, "C" , Baseline

equals

negative 5.5

表达式13: "C" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline

equals

4.3 3 0 1 2 7 0 1 8 9 2

表达式14: "B" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline plus "A" Subscript, "B" , Baseline cosine "B" Subscript, "A" "E" , Baseline

equals

negative 2.5

表达式15: "B" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline plus "A" Subscript, "B" , Baseline sine "B" Subscript, "A" "E" , Baseline

equals

4.3 3 0 1 2 7 0 1 8 9 2

表达式16: "E" Subscript, 1 , Baseline equals "A" Subscript, "E" , Baseline

equals

表达式17: "E" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

equals

表达式18: "D" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus "C" Subscript, "D" , Baseline cosine "B" Subscript, "C" "D" , Baseline

equals

negative 1.2 0 5 2 1 9 7 2 5 4 2

表达式19: "D" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus "C" Subscript, "D" , Baseline sine "B" Subscript, "C" "D" , Baseline

equals

13.3 6 0 9 0 0 0 9 7 3

Graph

表达式21: polygon left parenthesis, "A" , "B" , "C" , "D" , "E" , right parenthesis

Points

表达式42:

技术支持

120°

60°