Proof Without Words: Double Sum for Sine and Cosine

Author： Unal Hasan  

Publisher： Mathematical Association of America

ISSN： 1931-1346

Source： The College Mathematics Journal, Vol.41, Iss.5, 2010-11, pp. : 392-392

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Related content

Proof Without Words: Sine Sum Identity

By Wang Long  

The College Mathematics Journal, Vol. 45, Iss. 3, 2014-05 ,pp. : 190-190

Mathematical Association of America

Access to resources Recommend Favorite

Proof Without Words: The Triple Angle Sine and Cosine Formulas

By Alsina Claudi   Nelsen Roger B.  

Mathematics Magazine, Vol. 85, Iss. 1, 2012-02 ,pp. : 43-43

Mathematical Association of America

Access to resources Recommend Favorite

Proof Without Words: Tangent of the Sum

By Kung Sidney H.  

Mathematics Magazine, Vol. 81, Iss. 4, 2008-10 ,pp. : 295-295

Mathematical Association of America

Access to resources Recommend Favorite

Proof Without Words: Cosine Difference Identity

By  

The College Mathematics Journal, Vol. 45, Iss. 5, 2014-11 ,pp. : 370-370

Mathematical Association of America

Access to resources Recommend Favorite

Proof Without Words: The Sine Is Subadditive on [0, π]

By Fan Xingya   Zhu Yixin  

The College Mathematics Journal, Vol. 43, Iss. 5, 2012-11 ,pp. : 376-376

Mathematical Association of America

Access to resources Recommend Favorite