Vector Cross Product Calculation (Jee Mains)

Scalar and Vector Products

Medium

Vector Cross Product Calculation

Let $\vec a = - \hat i + \hat j + 2\hat k$ , $\vec b = \hat i - \hat j - 3\hat k$ , $\vec c = \vec a \times \vec b$ and $\vec d = \vec c \times \vec a$ . Then $\left( {\vec a - \vec b} \right)$ . $\vec d$ is equal to :

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