A.\(6.\)     
B.\(3.\)      
C.\(2.\)      
D.\(5.\)

A.\(\dfrac{\pi }{{1000}}.\)   
B.\(\dfrac{\pi }{2}.\)     
C.\(\dfrac{{{\pi ^2}}}{2}.\)    
D.\(\dfrac{{{\pi ^2}}}{{1000}}.\)

A.30  
B.31  
C.5  
D.10

A.\(S = \left\{ {0;1} \right\}\)                      
B.\(S = \left\{ {\dfrac{{1 - \sqrt 5 }}{2};\dfrac{{1 + \sqrt 5 }}{2}} \right\}\)
C.\(S = \left\{ { - 1;\dfrac{1}{2}} \right\}\)                          
D.\(S = \left\{ {\dfrac{{ - 1}}{2};1} \right\}\)

A.\(m \le 3\)                    
B.\(m \ge 3\)                     
C.\(m < 3\)                         
D.\(m > 3\)

A.\(10\pi \)                    
B.10                    
C.\(5\pi \)                          
D.5

A.\(D = R\)   
B.\(D = \left( { - \infty ;0} \right) \cup \left( {1; + \infty } \right)\)
C.\(D = R\backslash \left\{ {0;1} \right\}\)  
D.\(D = \left( { - \infty ;0} \right] \cup \left[ {1; + \infty } \right)\)

A.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = 16\)  
B.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = 4\)
C.\({\left( {x + 2} \right)^2} + {\left( {y - 5} \right)^2} + {\left( {z - 1} \right)^2} = \dfrac{{25}}{9}\)
D.\({\left( {x - 2} \right)^{^2}} + {\left( {y + 5} \right)^2} + {\left( {z + 1} \right)^2} = 16\)

A.2                   
B.1                    
C.3                         
D.4

A.\(\sqrt {11}  - \sqrt 5 \)                    
B.6                   
C.\(\sqrt 5  - \sqrt {11} \)                          
D.3