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.\({7^4}\)

A.\(41\)
B.\(\dfrac{{245}}{6}\)
C.\(\dfrac{{245}}{{12}}\)
D.\(\dfrac{{41}}{2}\)

A.\(2\)
B.\(4\)
C.\(5\)
D.\(3\)

A.\(3{\log _2}a\)
B.\(3 + {\log _2}a\)
C.\({\left( {{{\log }_2}a} \right)^3}\)
D.\(\dfrac{1}{3} + {\log _2}a\)

A.\(30\)
B.\(210\)
C.\(42\)
D.\(35\)

A.\(7\)
B.\(6\)
C.\(8\)
D.\(2021\)