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MATH / Let a₁, a₂, …, a₄₀₀₁ be an arithmetic sequence such that a₁+a₄₀₀₁=50 and (1)/(a₁a₂)+(1)/(a₂a₃)+…+(1)/(a₄₀₀₀a₄₀₀₁)=10.Find |a₁−a₄₀₀₁|. · Discussion

Discussing Let a₁, a₂, …, a₄₀₀₁ be an arithmetic sequence such that a₁+a₄₀₀₁=50 and (1)/(a₁a₂)+(1)/(a₂a₃)+…+(1)/(a₄₀₀₀a₄₀₀₁)=10.Find |a₁−a₄₀₀₁|. · MATH

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