Question

derive an expression for cross product of twi vectors and express it in determinant form​

Answer 1

Explanation:

First do the cross product, and only then dot the resulting vector with the first vector. u · (v × w) = w · (u × v) = v · (w × u). The number |u · (v × w)| is the volume of the parallelepiped determined by the vectors u, v, w.