Avaldis 1: left parenthesis, left parenthesis, 4 plus left parenthesis, sin 2 pi "v" , right parenthesis left parenthesis, sin 2 pi "u" , right parenthesis , right parenthesis sin 3 pi "v" , left parenthesis, sin 2 pi "v" , right parenthesis left parenthesis, cos 2 pi "u" , right parenthesis plus 8 "v" minus 4 , left parenthesis, 4 plus left parenthesis, sin 2 pi "v" , right parenthesis left parenthesis, sin 2 pi "u" , right parenthesis , right parenthesis cos 3 pi "v" , right parenthesis4+sin2πvsin2πusin3πv,sin2πvcos2πu+8v−4,4+sin2πvsin2πucos3πv
