jee_main_2026_24_january_evening - Sequences and Series Topics

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QUESTION #5 Arithmetic Progression Properties
Let α₁, α₂, α₃, α₄ be an A.P. of four terms such that each term of the A.P. and its common difference l are integers. If α₁ + α₂ + α₃ + α₄ = 48 and α₁α₂α₃α₄ + l⁴ = 361 then the largest term of the A.P. is equal to
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QUESTION #7 Sum of Infinite Series
((1)/(3) + (4)/(7)) + ((1)/(3²) + (1)/(3) × (4)/(7) + (4²)/(7²)) + ((1)/(3³) + (1)/(3²) × (4)/(7) + (1)/(3) × (4²)/(7²) + (4³)/(7³)) + upto infinite terms is equal to -
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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