On certain trigonometric identities
Crossref DOI link: https://doi.org/10.1007/s13398-019-00702-8
Published Online: 2019-06-19
Published Print: 2019-10
Update policy: https://doi.org/10.1007/springer_crossmark_policy
He, Bing http://orcid.org/0000-0001-6319-5800
Funding for this research was provided by:
National Natural Science Foundation of China (11801451)
Text and Data Mining valid from 2019-06-19
Version of Record valid from 2019-06-19
Article History
Received: 10 November 2018
Accepted: 14 June 2019
First Online: 19 June 2019