A.\(\dfrac{{ - 1}}{2}\)B.\(\ln 4\)C.\( - \ln 4\)D.\(\dfrac{1}{2}\)
A.\(I\left( {2; - 1; - 3} \right),\,\,R = 16\)B.\(I\left( { - 2;1;3} \right),\,\,R = 16\)C.\(I\left( {2; - 1; - 3} \right),\,\,R = 4\)D.\(I\left( { - 2;1;3} \right),\,\,R = 4\)
A.\(\overline z = 5 - 2i\)B.\(\overline z = - 2 - 5i\)C.\(\overline z = 2 + 5i\)D.\(\overline z = 2 - 5i\)
A.\(G\left( {0;1; - 1} \right)\)B.\(G\left( {0; - 2; - 2} \right)\)C.\(G\left( {0;2; - 2} \right)\)D.\(G\left( {0;2;2} \right)\)
A.\(\sqrt {445} \)B.25C.\(\sqrt {13} \)D.5
A.\(\int {f\left( x \right)dx} = - \cos 2x + C\)B.\(\int {f\left( x \right)dx} = \dfrac{1}{2}\cos 2x + C\)C.\(\int {f\left( x \right)dx} = \cos 2x + C\) D.\(\int {f\left( x \right)dx} = - \dfrac{1}{2}\cos 2x + C\)
A.\(\left\{ \begin{array}{l}x = 3 + t\\y = - 1\\z = 4\end{array} \right.,\,\,t \in \mathbb{R}\)B.\(\left\{ \begin{array}{l}x = 2\\y = - 1 + t\\z = 4 + t\end{array} \right.,\,\,t \in \mathbb{R}\)C.\(\left\{ \begin{array}{l}x = 1 + 2t\\y = - t\\z = 4t\end{array} \right..,\,\,t \in \mathbb{R}\)D.\(\left\{ \begin{array}{l}x = 2\\y = - 1 + t\\z = 4 + t\end{array} \right.,\,\,t \in \mathbb{R}\)
A.2B.-2C.3D.-3
A.27B.36C.24D.16
A.\(x - 2y + 5 = 0\)B.\(2x - y - 3 = 0\)C.\(2x - y + 1 = 0\)D.\(2x + y - 5 = 0\)
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