Cross Product ch 11.4 {cal3}

Cross Product

https://www.youtube.com/watch?v=hLhnj_ju_Vo&t=464s

• Denoted by $\vec{a}\vec{\times }b$
• Property Cross Product is orthogonal to both vectors
  • Therefore, (a x b) * a^b =0

3x3 matrix easy method

1. Seperate i,j,k, where take the i-j+k vectors (which will add up to final vector)
2. for cross of i, ignore i column and taker the cralcoss of j and k, where j-k from left to right cross
3. continue for each remaining ones
4. combine i,j,k into one vector