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tan(p/5)+tan(x)/1-tan(p/5)*tan(x)<=1 desigualdades

En la desigualdad la incógnita

Solución

Ha introducido [src]
   /p\   tan(x)      /p\            
tan|-| + ------ - tan|-|*tan(x) <= 1
   \5/     1         \5/            
$$\left(\frac{\tan{\left(x \right)}}{1} + \tan{\left(\frac{p}{5} \right)}\right) - \tan{\left(x \right)} \tan{\left(\frac{p}{5} \right)} \leq 1$$
tan(x)/1 + tan(p/5) - tan(x)*tan(p/5) <= 1