恒等式证法初探

Study of Methods to Prove the Identical Equations

恒等式证明由于运用的知识面较广,方法较灵活,对于某一具体的恒等式,若能根据其特点,采用适当方法,不但可以使证明简洁、易懂,而且有利于培养学生综合运用已学知识解题的技能。

The identification of the identical equation uses a great deal of knowledge and a good many nimble methods as well.For a certain concrete identical equation,if you adopt a suitable method according to its features,then you can not only make it simple and easy to prove it,but also be useful to train the students the skills to apply the knowledge that they have learned to answering the difficult questions.