Expression 30: "p" left parenthesis, 0.4cos "t" plus "a" . "x" , 0.4sin "t" plus "a" Subscript, "y" , Baseline left parenthesis, "a" . "y" , right parenthesis , "a" . "y" , right parenthesis Has graph.p0.4cost+a.x,0.4sint+aya.y,a.y
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
30
Expression 31: "p" left parenthesis, "a" . "x" plus 0.4cos "t" , 0 , "a" . "y" plus 0.4sin "t" , right parenthesis Has graph.pa.x+0.4cost,0,a.y+0.4sint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
31
Expression 32: StartFraction, 1 Over 15 , EndFraction left parenthesis, 15 "r" . "x" plus "X" left parenthesis, "t" , right parenthesis cos alpha minus "Y" left parenthesis, "t" , right parenthesis sin alpha , 15 "r" . "y" plus "X" left parenthesis, "t" , right parenthesis sin alpha plus "Y" left parenthesis, "t" , right parenthesis cos alpha , right parenthesis Has graph.11515r.x+Xtcosα−Ytsinα,15r.y+Xtsinα+Ytcosα
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 2 pi2π
32
Expression 33: "p" left parenthesis, "r" Subscript, "o" , Baseline . "x" plus "X" left parenthesis, "t" , right parenthesis cos alpha Subscript, 2 , Baseline minus "Y" left parenthesis, "t" , right parenthesis sin alpha Subscript, 2 , Baseline , "r" Subscript, "o" , Baseline . "y" plus "X" left parenthesis, "t" , right parenthesis sin alpha Subscript, 2 , Baseline plus "Y" left parenthesis, "t" , right parenthesis cos alpha Subscript, 2 , Baseline , 0 , right parenthesis Has graph.pro.x+Xtcosα2−Ytsinα2,ro.y+Xtsinα2+Ytcosα2,0
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤