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JEE Advanced Mathematics question

MathematicsVector AlgebraJEE Advanced

Let be noncoplanar vectors and , , then

Answer: (A),(B)

Solution

All three denominators equal (cyclic permutations). Then

Missing argument for \vec\vec p·Missing argument for \vec\vec a==1, Missing argument for \vec\vec q·Missing argument for \vec\vec b=Missing argument for \frac\frac{[\vec b\ \vec c\ \vec a]}{[Missing argument for \vec\vec b\ Missing argument for \vec\vec c\

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Question ID VK-109709