**Topic 1: Direction cosines and direction ratios of a line**

**Topic 2: Relation between the direction cosines of a line**

**Topic 3: Direction cosines of a line passing through two points**

**Topic 4: Problems on direction cosines of a line**

**Topic 5: Equation of a line in space**

**Topic 6: Problems on equation of a line through a given point**

**Topic 7: Equation of a line passing through two given points**

**Topic 8: Problems on equation of a line – two given points**

**Topic 9: Angle between two lines**

**Topic 10: Problems on angle between two lines**

**Topic 11: Shortest distance between two lines**

**Topic 12: Distance between two skew lines**

**Topic 13: Distance between parallel lines**

**Topic 14: Problems on distance between parallel lines**

**Topic 15: Plane**

**Topic 16: Problems on equation of a plane in normal form**

**Topic 17: Equation of a plane perpendicular to a given vector**

**Topic 18: Problem on plane perpendicular to a given vector **

**Topic 19: Plane passing through three non collinear points**

**Topic 21: Intercept form of the equation of a plane**

**Topic 22: Problem on intercept form of the equation of a plane**

**Topic 23: Plane passing through the intersection of two given planes**

**Topic 24: Problems zone**

**Topic 25: Coplanarity of two lines**

**Topic 26: Angle between two planes**

**Topic 27: Problems on angle between two planes**

**Topic 28: Distance of a point from a plane**

**Topic 29: Problem on distance of a point from a plane**

**Topic 30: Angle between a line and a plane**

**Topic 31: Problem on angle between a line and a plane**

**Topic 32: Miscellaneous examples**

**Summary**

**Note book**