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Questions  >>  CBSE XII  >>  Math  >>  Vector Algebra
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Find the area of the parallelogram whose adjacent sides are determined by the vectors $ \overrightarrow a = \hat i - \hat j + 3\hat k$ and $\overrightarrow b = 2\hat i - 7 \hat j + \hat k$

$\begin{array}{1 1} (A) \large\frac{15}{\sqrt 2} \;cubic units. \\ (B) \;15\sqrt 2 \;sq units. \\ (C) 30\sqrt 2 \;sq units. \\ (D) \;\large\frac{30}{\sqrt 2} \;cubic \;units. \end{array} $

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