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$$
\{ \{ {\frac{e\,G\,v\,\left( 1 - {v^4} + G\,{v^2}\,\left( -1 + {v^2} \right)  \right)  - 
       \left( -1 + G \right) \,n\,{v^3}\,\left( 1 - {v^2} + G\,\left( 3 + {v^2} \right)  \right) }{e\,G\,
        \left( 1 - {v^4} + G\,{v^2}\,\left( -1 + {v^2} \right)  \right)  - 
       n\,\left( -1 + {v^2} + {G^2}\,{v^2}\,\left( 3 + {v^2} \right)  - G\,\left( -1 + 4\,{v^2} + {v^4} \right)  \right) }},
   -{\frac{n\,{{\left( 1 - {v^2} \right) }^{{\frac{3}{2}}}}\,\left( 1 + \left( -1 + G \right) \,{v^2} \right) }
      {e\,G\,\left( -1 + {v^4} + G\,\left( {v^2} - {v^4} \right)  \right)  + 
        n\,\left( -1 + {v^2} + {G^2}\,{v^2}\,\left( 3 + {v^2} \right)  - G\,\left( -1 + 4\,{v^2} + {v^4} \right)  \right) }}
\}
$$
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