A.\({90^0}\)
B.\({120^0}\)
C.\({45^0}\)
D.\({60^0}\)

A.\(\left( { - 2; - 1} \right)\)
B.\(\left( {2;\,\,1} \right)\)
C.\(\left( {1;\,\,2} \right)\)
D.\(\left( { - 1; - 2} \right)\)

A.\(7\)
B.\(2\sqrt 7  + 3\)
C.\(2\sqrt 7  - 3\)
D.\(3\)

A.\(6\)
B.\(8\)
C.\(2\)
D.\(14\)

A.\(6\,\,cm\)
B.\(36\,\,cm\)
C.\(\sqrt {13} \,cm\)
D.\(9\,\,cm\)

A.\({x^2} - 6x + 1 = 0\)
B.\({x^2} + x - 6 = 0\)
C.\({x^2} + 6x - 1 = 0\)
D.\({x^2} - x - 6 = 0\)

A.\(-1\)
B.\(\sqrt 3 \)
C.\(\dfrac{1}{3}\)
D.\(1\)

A.\(x < 1\)
B.\(x \ge 1\)
C.\(x > 1\)
D.\(x \le 1\)

A.\({45^0}\)
B.\({60^0}\)
C.\({50^0}\)
D.\({30^0}\)

A.\(m \ne  - 1\)
B.\(m =  - 1\)
C.\(m \ne 1\)
D.\(m \ne 0\)