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Questions  >>  CBSE XII  >>  Math  >>  Vector Algebra
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Q)

Find the direction cosines of the vector joining the points $A(1, 2, –3)$ and $B(–1, –2, 1),$ directed from $A$ to $B$.

$\begin{array}{1 1}(A) (\large\frac{-1}{3},\frac{-2}{3},\frac{2}{3}) \\(B) (-1,-2,2) \\ (C) (\large\frac{1}{3},\frac{2}{3},\frac{-2}{3}) \\(D) (1,2,-2) \end{array} $

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