Expression 6: left parenthesis, "x" squared plus "y" squared , right parenthesis squared equals 6 left parenthesis, "x" squared plus "y" squared , right parenthesis plus 8 "x" plus 3x2+y22=6x2+y2+8x+3
6
Hidden Label: left parenthesis, 2cos "s" plus cos 2 "s" , 2sin "s" plus sin 2 "s" , right parenthesis2coss+cos2s,2sins+sin2s
Label
equals=
left parenthesis, 3 , 0 , right parenthesis3,0
7
The rolling circle in both constructions
8
Expression 9: "x" squared plus "y" squared equals 1x2+y2=1
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Expression 10: "s" equals 0s=0
00
2 pi2π
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Expression 11: left parenthesis, "x" minus 2cos "s" , right parenthesis squared plus left parenthesis, "y" minus 2sin "s" , right parenthesis squared equals 1x−2coss2+y−2sins2=1