A.\(  x + 2y - 5 = 0\) 
B.\(x + 2z - 5 = 0\)
C.\( - x + 2y - 5 = 0\)
D.\(x - 2z + 1 = 0\)

A.\(\left( {0;1;2020} \right)\)
B.\(\left( {1;1;1} \right)\)
C.\(\left( {0;2020;0} \right)\)
D.\(\left( {1;0;0} \right)\)

A.\(\dfrac{2}{5}\)
B.\(\dfrac{1}{{10}}\)
C.\(\dfrac{1}{5}\)
D.\(\dfrac{1}{4}\)

A.\(y = {x^3} - 3{x^2} + 3\)
B.\(y = {x^4} - 2{x^2} + 1\)
C.\(y =  - {x^4} + 2{x^2} + 1\) 
D.\(y =  - {x^3} + 3{x^2} + 1\)

A.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y = \dfrac{1}{2}\)
B.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y =  - 3\)
C.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y =  - 1\)
D.\(\mathop {\min }\limits_{x \in \left[ {0;3} \right]} y = 1\)

A.\(S = \left( {1;10} \right)\)
B.\(S = \left( { - \infty ;9} \right)\)
C.\(S = \left( { - \infty ;10} \right)\)
D.\(S = \left( {1;9} \right)\)

A.\(T = 6\)
B.\(T = 7\)
C.\(T = 9\)
D.\(T = 5\)

A.\(\left| z \right| = 5\)
B.\(\left| z \right| = \sqrt 5 \)
C.\(\left| z \right| = 10\)
D.\(\left| z \right| = 6\)

A.\({90^0}\)
B.\({30^0}\) 
C.\({45^0}\) 
D.\({60^0}\)

A.\(\dfrac{{a\sqrt 3 }}{3}\)
B.\(\dfrac{{a\sqrt 5 }}{5}\)
C.\(\dfrac{{a\sqrt {10} }}{5}\)
D.\(\dfrac{{a\sqrt {21} }}{7}\)