MathSchoolinternational.com contain houndreds of Free Math e-Books. Which cover almost all topics of mathematics. To see an extisive list of
Objective Mathematics eBooks . We hope mathematician or person who’s interested in mathematics like these books.

Objective Mathematics Volume 2 written by R. D. Sharma
This is an other great mathematics book cover the following topics.

Trigonometric Ratio and Identities

Properties of Triangles and Circles Connected with Them