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Questions  >>  CBSE XII  >>  Math  >>  Vector Algebra
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Show that the vector $ \hat i + \hat j + \hat k$ is equally inclined to the axes OX, OY and OZ.

$\begin{array}{1 1}cos^{-1}\large\frac{1}{\sqrt3} \\cos^{-1}\large\frac{1}{3} \\ cos^{-1}\large\frac{1}{\sqrt2} \\cos^{-1}\large\frac{1}{2} \end{array} $

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