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SEAMO 2021 — Paper C — Grade 5–6 Question 14

SEAMO · SEAMO 2021 — Paper C — Grade 5–6

Question 14

Evaluate $(1+\frac12)(1-\frac13)(1+\frac14)(1-\frac15)\cdots(1+\frac1{2020})(1-\frac1{2021})$.
  1. $2$
  2. $3$
  3. $4$
  4. $5$
  5. None of the above