A.\(\left( {1; - 1;2} \right)\)B.\(\left( {1; - 1; - 2} \right)\)C.\(\left( { - 1;1; - 2} \right)\)D.\(\left( { - 1;1;2} \right)\)
A.\(\overrightarrow i \left( {1;0;0} \right)\)B.\(\overrightarrow n \left( {0;1;1} \right)\)C.\(\overrightarrow j \left( {0;1;0} \right)\)D.\(\overrightarrow k \left( {0;0;1} \right)\)
A.\(x = 3\)B.\(x = 2\)C.\(x = 4\)D.\(x = 5\)
A.\(4\)B.\(2\)C.\(3\)D.\(1\)
A.\(29\)B.\(7\)C.\(1\)D.\(11\)
A.\(3\)B.\(4\)C.\(1\)D.\(2\)
A.\(\dfrac{{x - 1}}{1} = \dfrac{{y - 1}}{2} = \dfrac{{z + 1}}{3}\)B.\(\dfrac{{x + 1}}{{ - 1}} = \dfrac{{y + 2}}{{ - 1}} = \dfrac{{z + 3}}{1}\)C.\(\dfrac{{x + 1}}{1} = \dfrac{{y + 1}}{2} = \dfrac{{z - 1}}{3}\)D.\(\dfrac{{x - 1}}{{ - 1}} = \dfrac{{y - 2}}{{ - 1}} = \dfrac{{z - 3}}{1}\)
A.\(l = 2r\)B.\(h = 2r\)C.\(l = r\)D.\(h = r\)
A.\(\left( {0;1} \right)\)B.\(\left( { - 2; - 1} \right)\)C.\(\left( { - 1;0} \right)\)D.\(\left( { - 1;3} \right)\)
A.coughedB.crookedC.cookedD.laughed
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