The magnitude of the vector product of two vectors `vec A` and `vec B` equals the scalar product. The square of some of these vectors is

Options

A. `(1/sqrt2)(A+B)`
B. `A^2 + B^2 + (1/sqrt2)AB`
C. "`A^2 + B^2 + sqrt2 AB` "
D. "`A^2 + B^2 + (1/2)AB` "