Expression 6: left parenthesis, cos left parenthesis, "c" , right parenthesis times "x" Subscript, "t" , Baseline plus sin left parenthesis, "c" , right parenthesis times "y" Subscript, "t" , Baseline , cos left parenthesis, "c" , right parenthesis times "y" Subscript, "t" , Baseline minus sin left parenthesis, "c" , right parenthesis times "x" Subscript, "t" , Baseline , right parenthesiscosc·xt+sinc·yt,cosc·yt−sinc·xt
domain t Minimum: 00
less than or equal to "t" less than or equal to≤t≤