Expression 19: "x" Subscript, 2 , Baseline equals "x" Subscript, 1 , Baseline plus "R" cosine left parenthesis, pi plus "N" phi , right parenthesisx2=x1+Rcosπ+Nϕ
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Expression 20: "y" Subscript, 2 , Baseline equals "y" Subscript, 1 , Baseline plus "R" sine left parenthesis, pi plus "N" phi , right parenthesisy2=y1+Rsinπ+Nϕ
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Expression 21: "X" Subscript, 2 , Baseline equals "X" Subscript, 1 , Baseline plus "R" cosine left parenthesis, pi plus "N" "L" , right parenthesisX2=X1+Rcosπ+NL
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Expression 22: "Y" Subscript, 2 , Baseline equals "Y" Subscript, 1 , Baseline plus "R" sine left parenthesis, pi plus "N" "L" , right parenthesisY2=Y1+Rsinπ+NL