นิพจน์ 15: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesisRcost,Rsint
15
นิพจน์ 16: left parenthesis, "R" cos "t" , "R" sin 0 , right parenthesisRcost,Rsin0
16
นิพจน์ 17: left parenthesis, "N" Subscript, 1 , Baseline plus "R" Subscript, 2 , Baseline cos "t" , "N" Subscript, 2 , Baseline plus "R" Subscript, 2 , Baseline sin "t" , right parenthesisN1+R2cost,N2+R2sint
17
นิพจน์ 18: left parenthesis, "M" Subscript, 1 , Baseline plus "R" Subscript, 3 , Baseline cos "t" , "M" Subscript, 2 , Baseline plus "R" Subscript, 3 , Baseline sin "t" , right parenthesisM1+R3cost,M2+R3sint