Key Points:
1) Addition of Vectors: Triangle Law, Parallelogram Law and Polygon Law
2) Properties of vector addition
3) Scalar Multiplication
4) Scalar Product & Its Properties
5) Vector Product
6) Scalar Triple Product
7) 3-Dimensional Co-geometry: Distance Formula and Ratio Formula
8) Direction Cosines
9) Direction Numbers (Direction Ratios)
10) Equation of Line: Parametric Form, Symmetric Form, Two-plane Form and Vector Form
11) Equation of Plane
12) Perpendicular Distance from a point to a plane
13) Angle between Two Intersecting Planes
14) Equation of Family of Planes through the Line of Intersection of Two Given Planes
15) Perpendicular distance between two skew lines
16) Condition for two lines to be coplanar
17) Linear Independence
