A.\(12 + 5i\)B.\( - 12 + 5i\)C.\(12 - 5i\)D.\( - 12 + 8i\)
A.\(r = 2\)B.\(r = 2\sqrt 2 \)C.\(r = 4\)D.\(r = 3\sqrt 2 \)
A.\(G\left( {\frac{1}{3}; - 1;\frac{5}{3}} \right)\)B.\(G\left( {\frac{1}{2}; - \frac{3}{2};\frac{5}{2}} \right)\)C.\(G\left( {1; - 3;5} \right)\)D.\(G\left( {\frac{5}{3};0;\frac{1}{3}} \right)\)
A.\(\frac{{2x}}{{{x^2} + 2}}\)B.\(\frac{1}{{{x^2} + 2}}\)C.\(\frac{x}{{{x^2} + 2}}\)D.\(2x\left( {{x^2} + 2} \right)\)
A.\(x = \frac{5}{2}\)B.\(x = 3\)C.\(x = 2\)D.\(x = \frac{3}{2}\)
A.\(\int {f\left( x \right)dx} = {x^3} - {x^2} + x + C\)B.\(\int {f\left( x \right)dx} = 3{x^3} - 2{x^2} + x + C\)C.\(\int {f\left( x \right)dx} = 6{x^3} - 4{x^2} + 2x + C\)D.\(\int {f\left( x \right)dx} = \frac{{{x^3}}}{3} - \frac{{{x^2}}}{2} + x + C\)
A.\(\left( { - \infty ;0} \right)\)B.\(\left( {0;1} \right)\)C.\(\left( {1; + \infty } \right)\)D.\(\left( { - 1;0} \right)\)
A.\(2\)B.\(4\)C.\(1\)D.\(3\)
A.\(V = \frac{1}{3}Bh\)B.\(V = \frac{1}{2}Bh\)C.\(V = 3Bh\)D.\(V = Bh\)
A.\(25\)B.\(49\)C.\(42\)D.\(13\)
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến