A) \[{{x}^{2}}+{{y}^{2}}-2x+4y=0\]
B) \[{{x}^{2}}+{{y}^{2}}-2x-4y=0\]
C) \[{{x}^{2}}-{{y}^{2}}\,\text{+}\,2x-\text{6}y=0\]
D) \[{{x}^{2}}+{{y}^{2}}-4x+6y=0\]
E) None of these
Correct Answer: B
Solution :
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