A.\({I_0} = \frac{{U\sqrt 2 }}{R}\)
B.\({I_0} = RU\)
C.\({I_0} = \frac{u}{R}\)
D.\({I_0} = \frac{U}{R}\)

A.\(50\sqrt 2 V\)
B.\(50V.\)
C.\(100\sqrt 2 V\)
D.\(100V\)

A.\(2\)
B.\(1\)
C.\(3\)
D.\(0\)

A.\(\overrightarrow {{u_2}}  = \left( {8;6;7} \right)\)
B.\(\overrightarrow {{u_4}}  = \left( {4;3;3} \right)\)
C.\(\overrightarrow {{u_3}}  = \left( {1;1;2} \right)\)
D.\(\overrightarrow {{u_1}}  = \left( {2;2;5} \right)\)

A.\(2f\left( { - 3} \right) + 16\)
B.\(2f\left( { - 4} \right) + 25\)
C.\(2f\left( { - 1} \right) + 4\)
D.\(2f\left( 3 \right) + 4\)

A.\(\left( {{P_2}} \right):\,\,x + y + z - 1 = 0\) 
B.\(\left( {{P_4}} \right):\,\,x + y - 2z - 1 = 0\)
C.\(\left( {{P_3}} \right):\,\,x + 2y + z + 1 = 0\) 
D.\(\left( {{P_1}} \right):\,\,2x + y - z + 1 = 0\)

A.\(\dfrac{1}{{143}}\)
B.\(\dfrac{{14}}{{143}}\)
C.\(\dfrac{7}{{1716}}\)
D.\(\dfrac{7}{{12}}\)

A.\(\left( {2; + \infty } \right)\)
B.\(\left( {\dfrac{1}{2}; + \infty } \right)\)
C.\(\left( {0;2} \right)\)
D.\(\left( {0;\dfrac{1}{2}} \right)\)

A.\(3\)
B.\(0\)
C.\(1\)
D.\(2\)

A.\(7!\)
B.\(C_7^4\)
C.\(A_7^4\)
D.\({7^4}\)