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JEE Main 2024 Mathematics question

MathematicsVector AlgebraJEE Main 2024

Let , and be a vector such that . If = 1670, then is equal to:

Answer: (B)

Solution

The condition gives (−Missing argument for \vec\vec a + 4Missing argument for \vec\vec b) × = 0, so = k(−Missing argument for \vec\vec a + 4Missing argument for \vec\vec b) = k(40, −3,

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Question ID VK-012460