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MHT CET 2022 Mathematics question

MathematicsVector AlgebraMHT CET 2022

If are the three unit vectors such that and is perpendicular to . If makes angles with and respectively. Then has the value

Answer: (A)

Solution

Square the given condition: . All three are unit vectors, so . Since , . Also $Missing argument for \bar\bar a·Missing argument for \bar\bar

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Question ID VK-095817