Question

If a, b& c are three non zero vectors then the expression a.(b.c) is ? a)scalar triple product b)volume of parallelepiped c)meaning less d) dot product

Answer 1

The result of dot product of two non zero vector is obviously a scalar.

so let `b*c=m`

Hence `a*(b*c)=a*m`, a dot product of a vector and a scalar. This is meaningless.