Question:
If a is the angle made by the vector \(\overrightarrow{a}=5\hat{i}+3\hat{j}+4\hat{k}\) with the positive x-axis, then cosa =
If a is the angle made by the vector \(\overrightarrow{a}=5\hat{i}+3\hat{j}+4\hat{k}\) with the positive x-axis, then cosa =
Updated On: Jun 10, 2024
- \(\frac{5}{12}\)
- \(\frac{1}{2}\)
- \(\frac{\sqrt2}{2}\)
- \(\frac{\sqrt5}{5}\)
- \(\frac{\sqrt2}{10}\)
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The Correct Option is C
Solution and Explanation
The correct option is (C): \(\frac{\sqrt2}{2}\)
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