1.

ABC is a triangle in which angle C is a right angle. If the coordinates of A and B be (?3, 4) and (3,?4) respectively, then the equation of the circumcircle of triangle ABC is

A.            \[{{x}^{2}}+{{y}^{2}}-6x+8y=0\]                                  
B.            \[{{x}^{2}}+{{y}^{2}}=25\]
C.            \[{{x}^{2}}+{{y}^{2}}-3x+4y+5=0\]                            
D.            None of these
Answer» C.            \[{{x}^{2}}+{{y}^{2}}-3x+4y+5=0\]                            


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