# Summation of the Inverted Tangents

**Geometry**Level 4

\[\large \sum_{m=1}^{\infty} \left [ \tan^{-1} \left (\frac{3m^2-3m+1}{m^6-3m^5+3m^4-m^3+1} \right ) \right ] = \ ? \]

\[\large \sum_{m=1}^{\infty} \left [ \tan^{-1} \left (\frac{3m^2-3m+1}{m^6-3m^5+3m^4-m^3+1} \right ) \right ] = \ ? \]

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