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[" Conic Section : Circle "],[" 4.Show t...

[" Conic Section : Circle "],[" 4.Show that "],[" represent a circle where "theta" is the parameter "],[" show that the point "(x,y)," where "],[x=5cos theta,y=-3+5sin theta,],[" lies on a circle for all values of "theta.],[" 6.Show that the point "(x,y),y=b+r sin theta,],[" lies on a circle for all values of "theta.],[" (i) "x=3cos theta,y=3sin theta,0<=theta<2 pi],[" (ii) "x=-1+sqrt(6)cos theta,y=2+sqrt(6)sin theta,0<=]

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