Find the scalar and vector products of two vectors `veca=(2hati-3hatj+4hatk)` and `vecb(hati-2hatj+3hatk)`.

Explanation

`veca*vecb=(2hati-3hatj+4hatk)*(hati-2hatj+3hatk)`
`=(2+6+12)=20`
`vecaxxvecb=|{:(hati,hatj,hatk),(2,-3,4),(1,-2,3):}|=hati(-9+8)-hatj(6-4)+hatk(-4+3)=(-hati-2hatj-hatk)`