Avaldis 1: left parenthesis, left parenthesis, 1 minus "a" , right parenthesis cos "t" plus "a" "t" , sin "t" minus "a" plus 1 , right parenthesis On graafik.1−acost+at,sint−a+1
domeeni t miinimum: negative 5 pi−5π
less than or equal to "t" less than or equal to≤t≤
