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Home  >>  EAMCET  >>  Mathematics
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Which of the following equations gives a circle?

\[\begin {array} {1 1} (a)\;r= 2 \sin \theta & \quad (b)\;r^2\cos 2 \theta=1 \\ (c)\;r(4 \cos \theta+ 5 \sin \theta)=3 & \quad (d)\;5= r (1+\sqrt 2 \cos \theta) \end {array}\]
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1 Answer

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$(a)\;r= 2 \sin \theta$
answered Feb 27, 2014 by meena.p
 
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