Some Identities on The Sum of Products of Sine and Cosine Function
Hu Hong · Journal of Huaiyin Teachers College · 2010
In this paper,according to the first and second Chebyshev polynomial recurrence relation and related properties,several of sine and cosine function of the d-dimensional vector and the mapping on the concept of the d-dimensional vector were defined.Scalar product of vectors was used,sine and cosine function was studied,some of sine and cosine function product and identities were obtained.