Trắc nghiệm về bất đẳng thức đại số 10

A. \( - \frac{5}{3} \le m < 1\)

B. \(1 < m \le \frac{5}{3}\)

C. \(m \le - \frac{5}{3}\)

D. m < 1

A. m < -1

B. m > -1 

C. \(m < - \frac{4}{3}\)

D. \(m > \frac{4}{3}\)

A. \(m > \frac{3}{2}\)

B. \(m > \frac{3}{4}\)

C. \(\frac{3}{4} < m < \frac{3}{2}\)

D. \(1 < m < 3\)

A. a= 0

B. a  < 0

C. \(0 < a \le \frac{1}{2}\)

D. \(a \ge \frac{1}{2}\)

A. m < 1

B. m > 1

C. \(m < \frac{1}{4}\)

D. \(m > \frac{1}{4}\)

A. \( - 14 < m < 2\)

B. \( - 14 \le m \le 2\)

C. \( - 2 < m < 14\)

D. khác

A. \(\left( { - 2,\frac{{3 - \sqrt {17} }}{2}} \right) \cup \left( {0,2} \right) \cup \left( {\frac{{3 + \sqrt {17} }}{2}, + \infty } \right)\)

B. \(x \notin \left\{ { - 2,0,2} \right\}\)

C. \( - 2 < x < 0\)

D. \(0 < x < 2\)

A. \(S = \left( { - \infty , - 4} \right) \cup \left( { - 1,1} \right) \cup \left( {4, + \infty } \right)\)

B. \(S = \left( { - \infty , - 4} \right)\)

C. \(S = \left( { - 1,1} \right)\)

D. \(S = \left( {4, + \infty } \right)\)

A. 2

B. 3

C. 4

D. 5

A. 0

B. 1

C. 2

D. 3

A. \(\left[ \begin{array}{l} - 7 < x < - 2\\ 3 < x < 4 \end{array} \right.\)

B. \(\left[ \begin{array}{l} - 2 \le x < 1\\ 1 < x < 2 \end{array} \right.\)

C. \(\left[ \begin{array}{l} 0 < x < 3\\ 4 < x < 5 \end{array} \right.\)

D. \(\left[ \begin{array}{l} - 3 < x \le - 2\\ - 1 < x < 1 \end{array} \right.\)

A. \({\left( {a - \frac{b}{2}} \right)^2} + {\left( {a - \frac{c}{2}} \right)^2} + {\left( {a - \frac{d}{2}} \right)^2} + {\left( {a - \frac{e}{2}} \right)^2} \ge 0\)

B. \({\left( {b - \frac{a}{2}} \right)^2} + {\left( {c - \frac{a}{2}} \right)^2} + {\left( {d - \frac{a}{2}} \right)^2} + {\left( {e - \frac{a}{2}} \right)^2} \ge 0\)

C. \({\left( {b + \frac{a}{2}} \right)^2} + {\left( {c + \frac{a}{2}} \right)^2} + {\left( {d + \frac{a}{2}} \right)^2} + {\left( {e + \frac{a}{2}} \right)^2} \ge 0\)

D. \({\left( {a - b} \right)^2} + {\left( {a - c} \right)^2} + {\left( {a - d} \right)^2} + {\left( {a - e} \right)^2} \ge 0\)