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JEE Main 2022 Mathematics question

MathematicsVector AlgebraJEE Main 2022

Let , be unit vectors. If be a vector such that the angle between and is , and , then is equal to :

Answer: (3)

Solution

(since ), and . Squaring, \vec{c}\vec{c}\vec{c}\sin ^{2}$(π /12) =

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Question ID VK-024145