jee_main_2026_28_january_morning - Sequences and Series Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #2 Exponential Series
The value of sum_k=1^inftyleft(-1right)^k+1left(frack(k+1)k!right) is:
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QUESTION #17 Arithmetic Progression
The common difference of the A.P.: a_1, a_2, dots, a_m is 13 more than the common difference of the A.P.: b_1, b_2, dots, b_n. If b_31 = -277, b_43 = -385 and a_78 = 327, then a_1 is equal to
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QUESTION #21 Geometric Progression
In a G.P., if the product of the first three terms is 27 and the set of all possible values for the sum of its first three terms is mathbbR - (a, b), then a^2 + b^2 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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