Câu hỏi trắc nghiệm (10 câu):
-
-
A.
\(\left\{ {\begin{array}{*{20}{l}}
{x + 3y - 6 > 0}\\
{2x + y + 4 > 0}
\end{array}} \right.\) -
B.
\(\left\{ {\begin{array}{*{20}{l}}
{x + 3y - 6 > 0}\\
{2x + y + 4 < 0}
\end{array}} \right.\) -
C.
\(\left\{ {\begin{array}{*{20}{l}}
{x + 3y - 6 < 0}\\
{2x + y + 4 > 0}
\end{array}} \right.\) -
D.
\(\left\{ {\begin{array}{*{20}{l}}
{x + 3y - 6 < 0}\\
{2x + y + 4 < 0}
\end{array}} \right.\)
-
A.
\(\left\{ {\begin{array}{*{20}{l}}
-
- A. (0; 1);
- B. (– 1; 1);
- C. (1; 3);
- D. (– 1; 0).
-
- A. min F(x; y) = 1 khi x = 2, y = 3;
- B. min F(x; y) = 2 khi x = 0, y = 2;
- C. min F(x; y) = 3 khi x = 1, y = 4;
- D. min F(x; y) = 7 khi x = 6, y = – 1.
-
- A. (0; 0);
- B. (1; 1);
- C. (– 1; 1);
- D. (– 1; – 1).
-
- A. \({S_1} \subset {S_2}\)
- B. \({S_2} \subset {S_1}\)
- C. \({S_2} = S;\)
- D. \({S_1}\; \ne S.\)
-
-
A.
\(\left\{ {\begin{array}{*{20}{l}}
{y > 0}\\
{3x + 2y < 6}
\end{array}} \right.\) -
B.
\(\left\{ {\begin{array}{*{20}{l}}
{y > 0}\\
{3x + 2y < - 6}
\end{array}} \right.\) -
C.
\(\left\{ {\begin{array}{*{20}{l}}
{x > 0}\\
{3x + 2y < 6}
\end{array}} \right.\) -
D.
\(\left\{ {\begin{array}{*{20}{l}}
{x > 0}\\
{3x + 2y > - 6}
\end{array}} \right.\)
-
A.
\(\left\{ {\begin{array}{*{20}{l}}
-
- A. 6
- B. 8
- C. 10
- D. 12
-
- A. -10
- B. 12
- C. -8
- D. -6
-
- A. (– 1; 4);
- B. (– 2; 4);
- C. (0; 0);
- D. (– 3; 4).
-
- A. (0; 0);
- B. (1; 0);
- C. (0; – 2);
- D. (0; 2).