NCERT Example 7 - Sequences and Series

Question: Find Sₙ and S₅ for 1 + 2/3 + 4/9 + ···.

Answer: Sₙ = 3[1 − (2/3)ⁿ]; S₅ = 211/81.

Full step-by-step NCERT solution with diagrams on Something by Zero.