Expression 2: left parenthesis, "t" cos "a" minus left parenthesis, sin "t" , right parenthesis sin "a" , "t" sin "a" plus left parenthesis, sin "t" , right parenthesis cos "a" , right parenthesistcosa−sintsina,tsina+sintcosa
domain t Minimum: negative 6−6
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 66
2
Expression 3: "x" squared plus "y" squared less than or equal to 36x2+y2≤36
3
Expression 4: "x" equals 0 left brace, negative 12 less than "y" less than negative 6 , right bracex=0−12<y<−6