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MHT CET 2025 Mathematics question

MathematicsVector AlgebraMHT CET 2025

If then a vector such that and is

Answer: (A)

Solution

Cross with the first condition: . By the triple product, (as ). Also $Missing argument for \bar\bar a×Missing argument for \bar\bar b=Missing \end{vmatrix}\begin{vmatrix}Missing argument for \hat\hat i&Missing argument for \hat\hat j&Missing argument for \hat\hat

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Question ID VK-102894