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A  \({{(x+3)}^{2}}+{{(y-4)}^{2}}-4=0\)                                     

B \({{(x-3)}^{2}}+{{(y-4)}^{2}}=4\)

C   \({{(x+3)}^{2}}+{{(y+4)}^{2}}=4\)                                             

D  \({{(x+3)}^{2}}+{{(y-4)}^{2}}=2\)

A  \({{a}^{2}}+{{b}^{2}}-c<0\)                    

B  \({{a}^{2}}+{{b}^{2}}\le c\)                                 

C  \({{a}^{2}}+{{b}^{2}}\ge c\)                                

D \({{a}^{2}}+{{b}^{2}}>c\)

A \(1<m<2\)                                                                   

B \(-2\le m\le 1\)              

C  \(m<1\) hoặc \(m>2\)                                                 

D  \(m<-2\) hoặc \(m>1\)

A  Đường tròn có tâm \(I(-1;2)\)  và \(R=1\)                 

B  Đường tròn có tâm \(I(1;-2)\)  và \(R=2\)

C  Đường tròn có tâm \(I(2;-4)\)  và \(R=2\)                 

D  Đường tròn có tâm \(I(1;-2)\)  và \(R=1\)

A  \((C)\) có tâm \(I(1,2)\)                                                          

B \((C)\) có bán kính \(R=5\)

C \((C)\) đi qua điểm \(M(2,2)\)                                     

D  \((C)\) không đi qua điểm \(A(1,1)\)

A \({{x}^{2}}+{{y}^{2}}=1.\)                                                                 

B  \({{x}^{2}}+{{y}^{2}}-x-y+2=0\)

C \({{x}^{2}}+{{y}^{2}}-4x-4y+8=0.\)                                      

D  \({{(x-3)}^{2}}+{{(y-4)}^{2}}=25.\)

A \({{(x+2)}^{2}}+{{(y-4)}^{2}}=50\)                                       

B \({{(x-2)}^{2}}+{{(y+4)}^{2}}=25\)

C \({{(x-2)}^{2}}+{{(y+4)}^{2}}=50.\)                                      

D \({{(x+2)}^{2}}+{{(y-4)}^{2}}=25\)

A \(M\) nằm ngoài \((C)\) .                                             

B  \(M\) nằm trên \((C)\).

C  \(M\) nằm trong \((C)\).                                                         

D  \(M\) trùng với tâm của \((C)\).

A \({{(x-2)}^{2}}+{{(y-1)}^{2}}=17\)                                        

B \( {{(x-2)}^{2}}+{{(y-1)}^{2}}=2\sqrt{5}\)

C \( {{(x-4)}^{2}}+{{(y-2)}^{2}}=17\)                                       

D \( {{(x+2)}^{2}}+{{(y+1)}^{2}}=17\)

A  \({{(x-1)}^{2}}+{{(y-1)}^{2}}=\sqrt{5}\)                                     

B  \({{(x+1)}^{2}}+{{(y+1)}^{2}}=\sqrt{5}\)

C  \({{(x-1)}^{2}}+{{(y-1)}^{2}}=5\)                                         

D  \({{(x+1)}^{2}}+{{(y+1)}^{2}}=5\)

A \( {{x}^{2}}+{{y}^{2}}=8\)                                                                 

B \( {{x}^{2}}+{{y}^{2}}+2x+4=0\)

C \( {{x}^{2}}+{{y}^{2}}-2x-8=0\)                                            

D \( {{x}^{2}}+{{y}^{2}}-4=0\)

A \( m=3.\)                                 

B \( m=5\)                                  

C \( m=2\)                                  

D \( m=0\)

A  \(x=1\)                       

B \( x+y-2=0\)                

C \( 2x+y-1=0\)              

D  \(y=1\)

A \( x+y-2=0\)                

B \( x+y+1=0\)               

C \( 2x+y-3=0\)              

D \( x-y=0\)

A  \(3x+4y-14=0.\)                     

B \(3x+4y+36=0.\)                     

C  \(4x-3y+36=0\)                      

D  \(4x-3y+14=0\)

A \( x-y+6=0\)                

B \( x-y+3-\sqrt{2}=0\)              

C \( x-y+4\sqrt{2}=0\)               

D  \(x-y-3+3\sqrt{2}=0\)

A \(d\) đi qua tâm của \((C)\).                                        

B \(d\)  cắt \((C)\)  tại hai điểm.

C  \(d\)  tiếp xúc với \((C)\) .                                          

D  \(d\)  không có điểm chung với \((C)\).

A \({x^2} + {y^2} - \frac{{83}}{{27}}x + \frac{{17}}{9}y - \frac{{338}}{{27}} = 0\)                        

B \({{x}^{2}}+{{y}^{2}}-\frac{83}{54}x+\frac{17}{18}y-\frac{338}{27}=0\)

C  \({{x}^{2}}+{{y}^{2}}+\frac{83}{27}x+\frac{17}{9}y-\frac{338}{27}=0\)                         

D  \({{x}^{2}}+{{y}^{2}}-\frac{83}{27}x-\frac{17}{9}y-\frac{338}{27}=0\)

A  \( M\left( -\frac{11}{5};\frac{23}{5} \right),N\left( \frac{1}{5};\frac{7}{5} \right)\)                                               

B \(M\left( -\frac{2}{5};\frac{11}{5} \right),N\left( \frac{1}{5};\frac{7}{5} \right)\)

C  \(M\left( -\frac{2}{5};\frac{11}{5} \right),N\left( 1;2 \right)\)                                            

D  \(M\left( -\frac{11}{5};\frac{23}{5} \right),N\left( 1;2 \right)\)