{"result":{"text":"equals fraction numerator 1 over denominator 1 minus alpha subscript 1 end fraction plus fraction numerator 1 over denominator 1 minus alpha subscript 2 end fraction plus........ plus fraction numerator 1 over denominator 1 minus alpha subscript n minus 1 end subscript end fraction equals fraction numerator C presuperscript n subscript 2 over denominator C presuperscript n subscript 1 end fraction equals fraction numerator n minus 1 over denominator 2 end fraction"},"status":"ok"}