QuexBook is a mobile learning module patterned on the Department of Education’s K12 Curriculum Guide (DepEd K to 12 CG) designed to enhance and strengthened knowledge about various subjects in Junior High and Senior High Subjects.

Pre - Calculus is composed of almost 780 questions with solutions and is equivalent to 950-page Book.

It contains the following topics:

I. Analytic Geometry
II. Series and Mathematical Induction
III. Trigonometry