MathematicsMedium178×since 2002Q5340The sum of 10 terms of the series 11+12+14+21+22+24+31+32+34 + ....{1 \over {1 + {1^2} + {1^4}}} + {2 \over {1 + {2^2} + {2^4}}} + {3 \over {1 + {3^2} + {3^4}}}\, + \,....1+12+141+1+22+242+1+32+343+.... isA58111{{58} \over {111}}11158B56111{{56} \over {111}}11156C55111{{55} \over {111}}11155D59111{{59} \over {111}}11159Check answerSkip