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Unit vector in the direction i + 2j + 3k is(A) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{7}}\)(B) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{14}}\)(C) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{2\sqrt{14}}\)(D) none of these |
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Answer» Correct option is: (B) \(\frac{\overrightarrow{i}+2\overrightarrow{j}+3\overrightarrow{k}}{\sqrt{14}}\) |
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