Ⅰ.
polynomial
01.
Operation of polynomials
02.
Identity and Remainder Theorem
03.
Factorization

Ⅱ.
Equations and Inequalities
04.
Complex numbers and quadratic equations
05.
Discriminant, relationship between roots and coefficients
06.
Quadratic function
07.
Various equations
08.
Inequality

Ⅲ.
Permutations and combinations
09.
Permutations and combinations

Ⅳ.
procession
10.
procession

Absolute Grade in the Grade 1 Problem Book

If you study with absolute grades, you can easily solve even the semi-killer problems.

▶ Prepare for school exams!

We created three levels of questions based on the high frequency of questions appearing on school exams.

[Exam Questions: 1 Minute Cut]
[Level 1 Challenge Problem: 3 Minutes]
[Absolute Grade Completion Problem: 7-Minute Cut]
You can develop a sense of reality by practicing solving problems within a limited time, and build solid skills by solving the three steps in sequence.

▶ A problem of a different level!

It consists of problems that can develop mathematical thinking and problem-solving skills, such as problems that can be solved intuitively by interpreting the principles and problems that require integrated thinking across various fields.

▶ Clean explanation!

We analyze the intent of the question and provide clues to solving the problem as if we were teaching one-on-one.
Additionally, it analyzes the problem from different perspectives and provides additional explanations.