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SEAMO 2027 - Paper F - SET 02 - Self-study Question 16

SEAMO · SEAMO 2027 - Paper F - SET 02 - Self-study

Question 16

Evaluate $S=\dfrac1{1+1^2+1^4}+\dfrac2{1+2^2+2^4}+\dfrac3{1+3^2+3^4}+\cdots+\dfrac{20}{1+20^2+20^4}$.
  1. $1/2$
  2. $210/421$
  3. $105/211$
  4. 1
  5. None of the above