If a, b are orthogonal unit vectors then for a vector r, noncoplanar with a and b, the vector r a is equal to

JEE Advanced Mathematics question

If are orthogonal unit vectors then for a vector , noncoplanar with and , the vector is equal to

Answer: (A)

form an orthonormal basis, so write and find each coefficient by a dot product: - : . - : \vec\vec\vec\vec$ r\

Create a free account to read the complete working (2 steps), and practise questions like this in a timed test.

Question ID VK-109938