Expression 7: "x" squared plus "y" squared equals left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesis squaredx2+y2=fx2
7
Expression 8: "x" squared plus "y" squared equals left parenthesis, "r" plus "m" , right parenthesis squaredx2+y2=r+m2
8
Expression 9: "x" squared plus "y" squared equals left parenthesis, "r" minus 1.2 5 times "m" , right parenthesis squaredx2+y2=r−1.25·m2
9
Expression 10: 0 equals StartFraction, 2 pi Over "n" , EndFraction0=2πn
10
Expression 11: "x" equals left parenthesis, "f" left parenthesis, "x" , right parenthesis times left parenthesis, cos left parenthesis, "t" , right parenthesis plus "t" times sin left parenthesis, "t" , right parenthesis , right parenthesis , "f" left parenthesis, "x" , right parenthesis times left parenthesis, sin left parenthesis, "t" , right parenthesis minus "t" times cos left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesisx=fx·cost+t·sint,fx·sint−t·cost
11
Expression 12: "y" equals left parenthesis, "f" left parenthesis, "x" , right parenthesis times left parenthesis, cos left parenthesis, "t" , right parenthesis plus "t" times sin left parenthesis, "t" , right parenthesis , right parenthesis times cos left parenthesis, 0 , right parenthesis minus "f" left parenthesis, "x" , right parenthesis times left parenthesis, sin left parenthesis, "t" , right parenthesis minus "t" times cos left parenthesis, "t" , right parenthesis , right parenthesis times sin left parenthesis, 0 , right parenthesis , "f" left parenthesis, "x" , right parenthesis times left parenthesis, cos left parenthesis, "t" , right parenthesis plus "t" times sin left parenthesis, "t" , right parenthesis , right parenthesis times sin left parenthesis, 0 , right parenthesis plus "f" left parenthesis, "x" , right parenthesis times left parenthesis, sin left parenthesis, "t" , right parenthesis minus "t" times cos left parenthesis, "t" , right parenthesis , right parenthesis times cos left parenthesis, pi , right parenthesis , right parenthesisy=fx·cost+t·sint·cos0−fx·sint−t·cost·sin0,fx·cost+t·sint·sin0+fx·sint−t·cost·cosπ