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SEAMO 2023 — Paper D — Grade 7–8 Question 9

SEAMO · SEAMO 2023 — Paper D — Grade 7–8

Question 9

Evaluate $1+1/3+1/3^2+\cdots+1/3^{10}$.
  1. $\frac32-\frac1{2\cdot3^{11}}$
  2. $\frac32-\frac1{2\cdot3^{10}}$
  3. $\frac1{2\cdot3^{10}}$
  4. $\frac1{3^{10}}$
  5. $\frac1{3^{11}}$