Expression 5: "y" equals left parenthesis, cos left parenthesis, StartFraction, 8 pi Over 7 , EndFraction , right parenthesis , sin left parenthesis, StartFraction, 8 pi Over 7 , EndFraction , right parenthesis , right parenthesisy=cos8π7,sin8π7
5
Expression 6: "y" equals left parenthesis, cos left parenthesis, StartFraction, 10 pi Over 7 , EndFraction , right parenthesis , sin left parenthesis, StartFraction, 10 pi Over 7 , EndFraction , right parenthesis , right parenthesisy=cos10π7,sin10π7
6
Expression 7: "y" equals left parenthesis, cos left parenthesis, StartFraction, 12 pi Over 7 , EndFraction , right parenthesis , sin left parenthesis, StartFraction, 12 pi Over 7 , EndFraction , right parenthesis , right parenthesisy=cos12π7,sin12π7
7
Expression 8: "y" equals left parenthesis, cos left parenthesis, StartFraction, 14 pi Over 7 , EndFraction , right parenthesis , sin left parenthesis, StartFraction, 14 pi Over 7 , EndFraction , right parenthesis , right parenthesisy=cos14π7,sin14π7