If a₁ + a₂ + a₃ + … + aₙ = 3(2ⁿ⁺¹ − 2), for every n ≥ 1, the... — Quantitative Ability 2019

Question 378 Quantitative Ability 2019 Medium NAT +3.00 marks

If a₁ + a₂ + a₃ + … + aₙ = 3(2ⁿ⁺¹ − 2), for every n ≥ 1, then a₁₁ equals

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