A.\(672\)  
B.\(483\)   
C.\(3.\left( {{2^{21}} - 1} \right)\)   
D.\({3^{21}} - 1\)

A.\(P = \dfrac{{\sqrt {10} }}{2}\)  
B.\(P = 2\sqrt {10} \)   
C.\(P = \sqrt {10} \)   
D.\(P = 2\)

A.\(2 - \sqrt 2 \)  
B.\(1\)    
C.\(2 + \sqrt 2 \)   
D.\(2\)

A.\(I = \int\limits_1^3 {{t^2}dt} \)  
B.\(I = \int\limits_1^3 {tdt} \)   
C.\(I = \int\limits_1^{{e^4}} {{t^2}dt} \)   
D.\(I = 2\int\limits_1^3 {{t^2}dt} \)

A.\({45^o}\)
B.\({90^o}\)
C.\({30^o}\)
D.\({60^o}\)

A.\(\left( {4;8} \right)\)  
B.\(\left( {4;9} \right)\)   
C.\(\left( {0;4} \right) \cup \left( {8; + \infty } \right)\)  
D.\(\left[ {4;8} \right]\)

A.\(\left( P \right):x + 2y - 3z + 9 = 0\)   
B.\(\left( P \right):x + 2y - 3z - 9 = 0\)
C.\(\left( P \right):x + 2y + 3z - 9 = 0\)   
D.\(\left( P \right):x + \sqrt 3 y - 1 - \sqrt 3  = 0\)

A.-1   
B.1    
C.-2    
D.2

A.\(\left( {1;3} \right)\)
B.\(\left( {0;2} \right)\)
C.\(\left( {2;4} \right)\)
D.\(\left( {3;4} \right)\)

A.\(\omega L\).
B.\(\frac{1}{{\sqrt {\omega L} }}\).
C.\(\sqrt {\omega L} \).
D.\(\frac{1}{{\omega L}}\).