A.\(759\)
B.\(795\)
C.\(597\)
D.\(579\)

A.
B.
C.
D.

A.
B.
C.
D.

A.\(x = 4,y = 3.\)
B.\(x = 3,y = 2.\)
C.\(x = 2,y = 3.\)
D.\(x = 3,y = 4.\)

A.
B.
C.
D.

A.\(1\)
B.\(\dfrac{1}{2}\)
C.\(\dfrac{1}{4}\)
D.\(\dfrac{1}{3}\)

A.
B.
C.
D.

A.\(F = 0\)
B.\(F = 1\)
C.\(F = -1\)
D.\(F = 2021\)

A.\(S = \left\{ {\dfrac{5}{2};\dfrac{5}{4}} \right\}.\)
B.\(S = \left\{ {\dfrac{5}{2};\dfrac{5}{3}} \right\}.\)
C.\(S = \left\{ {\dfrac{5}{3};1} \right\}.\)
D.\(S = \left\{ {\dfrac{5}{3};\dfrac{5}{4}} \right\}.\)

A.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - \sqrt {13} }}{3};\dfrac{{ - 17 - \sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + \sqrt {13} }}{3};\dfrac{{ - 17 + \sqrt {13} }}{3}} \right)} \right\}\)
B.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - 2\sqrt {13} }}{3};\dfrac{{ - 17 - 2\sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + 2\sqrt {13} }}{3};\dfrac{{ - 17 + 2\sqrt {13} }}{3}} \right)} \right\}\)
C.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - 2\sqrt {13} }}{3};\dfrac{{ - 15 - 2\sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + 2\sqrt {13} }}{3};\dfrac{{ - 15 + 2\sqrt {13} }}{3}} \right)} \right\}\)
D.\(\left( {x;y} \right) = \left\{ {\left( {\dfrac{{ - 5 - \sqrt {13} }}{3};\dfrac{{ - 15 - \sqrt {13} }}{3}} \right),\left( {\dfrac{{ - 5 + \sqrt {13} }}{3};\dfrac{{ - 15 + \sqrt {13} }}{3}} \right)} \right\}\)