cross product


Summary

Vector/cross product, determinant method

Angle between two vectors

Rules

Triangle formed by 2 vectors derived below

Concept

Vector product of standard unit vectors

Normal to the plane formed by and
use the right hand rule, thumb is the first vector, index is the second and middle is the cross product

cross_product.png

Deriving the formula for the area of triangle

Area of parallelogram formed by 2 vectors

area_of_parallelogram.pngcross_product_parallelogram.png

Application