Expression 15: "F" Subscript, 2 , Baseline equals "R" sine left parenthesis, "L" left bracket, 6 , right bracket , right parenthesis equals 1F2=RsinL6
equals=
11
15
Expression 16: "G" Subscript, 1 , Baseline equals "R" cosine left parenthesis, "L" left bracket, 7 , right bracket , right parenthesis equals negative 2G1=RcosL7
equals=
negative 2−2
16
Expression 17: "G" Subscript, 2 , Baseline equals "R" sine left parenthesis, "L" left bracket, 7 , right bracket , right parenthesis equals 0G2=RsinL7