JEE Advanced Mathematics question

MathematicsVector AlgebraJEE Advanced

, and are

Answer: (A)

Solution

Expand each by :

Missing argument for \vec\vec a×(Missing argument for \vec\vec b×Missing argument for \vec\vec c)+Missing argument for \vec\vec b×(Missing argument for \vec\vec c×Missing argument for \vec\vec a)+Missing argument for \vec\vec c×(Missing argument for \vec\vec a×Missing argument for \vec\vec b)

=(Missing argument for \vec\vec a·Missing argument for \vec\vec c)Missing argument for \vec\vec b-(Missing argument for \vec\vec a·Missing argument for \vec\vec b)Missing argument for \vec\vec c+(Missing argument for \vec\vec b·Missing argument for \vec\vec

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Question ID VK-109686