Expression 13: "y" equals StartFraction, "n" "x" Superscript, "n" , Baseline Over "x" , EndFraction times cosine left parenthesis, "x" , right parenthesisy=nxnx·cosx
13
Expression 14: "x" equals StartFraction, "n" "y" Superscript, "n" , Baseline Over "y" , EndFraction times cosine left parenthesis, "y" , right parenthesisx=nyny·cosy
14
Expression 15: "y" equals StartFraction, "n" "x" Superscript, "n" , Baseline Over "x" , EndFraction times sine left parenthesis, "x" , right parenthesisy=nxnx·sinx
15
Expression 16: "x" equals StartFraction, "n" "y" Superscript, "n" , Baseline Over "y" , EndFraction times sine left parenthesis, "y" , right parenthesisx=nyny·siny