A.\(\left\{ 2 \right\}\)B.\(\left\{ {0;2} \right\}\)C.\(\left\{ {0;\dfrac{3}{2}} \right\}\)D.\(\left\{ { \pm 2} \right\}\)
A.\(l = h\)B.\(h = R\)C.\({R^2} = {h^2} + {l^2}\)D.\({l^2} = {h^2} + {R^2}\)
A.\(m > n\)B.\(m = 0\)C.\(m = n\)D.\(m < n\)
A.36,8 giờB.30,2 giờC.26,9 giờD.18,6 giờ
A.\(\left( { - \infty ;1} \right]\)B.\(\left( { - \infty ;0} \right)\)C.\(\left( { - \infty ; - 2} \right)\)D.\(\left( { - 1; + \infty } \right)\)
A.\(a < - \dfrac{1}{5}\)B.\(a > - \dfrac{1}{5}\)C.\(a > - 5\)D.\(a < 5\)
A.\(Q\)B.\(N\)C.\(P\)D.\(M\)
A.\(I\left( { - \dfrac{1}{2};1;0} \right),\,\,R = \dfrac{1}{4}\)B.\(I\left( {\dfrac{1}{2}; - 1;0} \right),\,\,R = \dfrac{1}{2}\)C.\(I\left( {\dfrac{1}{2}; - 1;0} \right),\,\,R = \dfrac{1}{{\sqrt 2 }}\)D.\(I\left( { - \dfrac{1}{2};1;0} \right),\,\,R = \dfrac{1}{2}\)
A.\(\left( { - 4; + \infty } \right)\)B.\(\left( { - \infty ;0} \right)\)C.\(\left( { - \infty ;1} \right)\)D.\(\left[ {0; + \infty } \right)\)
A.Bắc Phi.B.Đông Nam Á.C.Đông Bắc.D.Mỹ Latinh.
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