目的研究第一类、第二类契贝谢夫多项式的一些恒等式,方法初等方法,结果得到了三角函数的一些非常有趣的恒等式,结论此方法将被用于其他正交多项式的研究。并为三角函数的研究提供了新的思路.
Aim To study the identities of the first and second Chebyshev multinomial.Method Elementary method. Result Some interesting identities of trigonometric function are obtained. Conclusion This method can be applied in the study of orthogonal polynomial and provide new way for the study of trigonometric function.