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Recent questions tagged p447

Find the angle between two vectors \( \overrightarrow a\) and \( \overrightarrow b\) with magnitudes \( \sqrt 3\) and \(2\) , respectively having \( \overrightarrow a . \overrightarrow b = \sqrt 6.\)

asked Dec 6, 2012 by thanvigandhi_1

1 answer

Find the projection of the vector $ \hat i − \hat j$ on the vector $ \hat i + \hat j $.

asked Dec 6, 2012 by thanvigandhi_1

1 answer

Find the projection of the vector $ \hat i + 3\hat j + 7\hat k$ on the vector $7\hat i − \hat j + 8\hat k$.

asked Dec 6, 2012 by thanvigandhi_1

1 answer

Show that each of the given three vectors is a unit vector: $ \large\frac{1}{7}$$ ( 2\hat i + 3\hat j + 6\hat k),\large\frac{1}{7}$$ ( 3\hat i - 6\hat j + 2\hat k), \large\frac{1}{7}$$ ( 6\hat i + 2\hat j - 3\hat k) $ Also, show that they are mutually perpendicular to each other.

asked Dec 6, 2012 by thanvigandhi_1

1 answer

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