This text is mainly in mathematics that aims at the high school not the certificate method of the equation carry on a lot of compare to tally up for the system, explain a type that various method apply, and illustrate with example its application.
This is mainly targeted at secondary school students, the kids prove a more systematic approach to the summary description of the various methods applied mathematics, and an example of its application.
This text aims at making a systematic generization of the proving methods on the unequality proving in middle-school maths,and showing the question styles applicable to the methods by concrete examples.