To buy this complete series (20 - Combinatorics (Counting)) for a discounted price of $19.99,
Counting problems appear in competitions at all levels. This course aims to help student to get familiar with various counting techniques and patterns. So they can become confident and proficient when attempting such problems from AMC8 to AIME.
To buy this complete series (48 - Indeterminate Equation) for a discounted price of $19.99,
Indeterminate equation is an important subject in number theory. Problems related to this topic can appear by itself or be part of other subjects. Simple indeterminate equations may appear in AMC8 level, but some challenging one can be tested in USAMO or even IMO level. Therefore, understanding how to solve indeterminate equations is a necessary skill for anyone who wants to perform well in math competitions. The book Indeterminate Equation is dedicated on this topic.