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MathJax Code Test Inclusion of codes to use MathJax in Blogger. $$\frac{\frac{a}{x-y} + \frac{b}{x+y}}{1 + \frac{a-b}{a+b}}$$  \begin{equation} \Huge \frac{\frac{a}{x-y} + \frac{b}{x+y}} {1 + \frac{a-b}{a+b}} \end{equation}

Dear Users I present to you a new means of professional contact, Twitter.com , at the following address: https://twitter.com/mathematicsmus   I joined this social network since 2010. Thank you Prof. Stenio Musich www.steniomusich.com