Expression 3: left parenthesis, 7.3cos left parenthesis, "t" , right parenthesis , 7.3sin left parenthesis, "t" , right parenthesis , right parenthesis plus left parenthesis, .8 5cos left parenthesis, 2 "t" , right parenthesis , .8 5sin left parenthesis, 2 "t" , right parenthesis , right parenthesis7.3cost,7.3sint+.85cos2t,.85sin2t
domain t Minimum: 00
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
3
Expression 4: left parenthesis, "x" minus .8 5 , right parenthesis squared plus left parenthesis, "y" , right parenthesis squared equals 7.3 squaredx−.852+y2=7.32