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NDA 2017 Mathematics question

MathematicsVector AlgebraNDA 2017

If and are two unit vectors, then the vector is parallel to

Answer: (A)

Solution

Using : $Missing argument for \hat\hat a×(Missing argument for \hat\hat a×Missing argument for \hat\hat b) = (Missing argument for \hat\hat a·Missing argument for \hat\hat b)Missing argument for \hat\hat a-Missing argument for \hat\hat

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Question ID VK-028737