tan α + tan β = 1.17532019085

運算式 16: distance left parenthesis, "B" , "D" , right parenthesis

equals

2.6 4 5 7 5 1 3 1 1 0 6

Coordinates

運算式 18: "A" Subscript, 1 , Baseline equals StartRoot, 0 , EndRoot

equals

運算式 19: "A" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot

equals

運算式 20: "B" Subscript, 1 , Baseline equals "s" cosine 60

equals

2.1 7 9 4 4 9 4 7 1 7 7

運算式 21: "B" Subscript, 2 , Baseline equals "s" sine 60

equals

3.7 7 4 9 1 7 2 1 7 6 3

運算式 22: "C" Subscript, 1 , Baseline equals "s"

equals

4.3 5 8 8 9 8 9 4 3 5 4

運算式 23: "C" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

equals

運算式 24: "D" Subscript, 1 , Baseline equals "A" Subscript, "D" , Baseline cosine "C" Subscript, "A" "D" , Baseline

equals

1.6 0 5 9 1 0 1 3 7 0 9

運算式 25: "D" Subscript, 2 , Baseline equals "A" Subscript, "D" , Baseline sine "C" Subscript, "A" "D" , Baseline

equals

1.1 9 2 0 7 9 1 2 1 3 6

Graphs

運算式 27: polygon left parenthesis, "A" , "B" , "C" , right parenthesis

運算式 28: polygon left parenthesis, "B" , "D" , right parenthesis

運算式 29: polygon left parenthesis, "A" , "D" , right parenthesis

運算式 30: polygon left parenthesis, "C" , "D" , right parenthesis

Points

技術支援

Start black, StartRoot, 7 , EndRoot End black

Start black, beta End black

Start black, alpha End black