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1
Introduction of Determinant
2
Family of Quadrilaterals
3
Basic Formulae and Special points in a Triangle
4
Area of Triangle and Condition of Collinearity
5
Locus of a Point
6
Equation of a Straight Line
7
Angle between two straight lines
8
Parametric Form of Straight Line
9
Family of Lines
10
Equation of Angle Bisector
11
