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Friday, 9 October

JEE Main Maths · Binomial Theorem

Geometric Progression of Expansions

Geometric Progression of Expansions (Binomial Theorem) was asked once in the 42 JEE Main shifts Lumi analysed, in 2024.

Times asked
1
in 1 shift
Years
2024
Usual format
Single correct
Multi-step
Pattern
New since 2024
asked once so far

How it is asked

  • Coefficient in geometric series of binomial expansions

Difficulty

Easy 0Medium 0Hard 1

Where it sits

Chapter: Binomial Theorem. Topic: Binomial Coefficients, 26 questions over 18 ideas.

Other repeat ideas in this topic

Every time it came

The question

Newest first, each with its options and official answer.

  1. 9 Apr 2024, Shift 1 · Q4The coefficient of x70x^{70} in x2(1+x)98+x3(1+x)97+x4(1+x)96+…+x54(1+x)46x^2(1+x)^{98}+x^3(1+x)^{97}+x^4(1+x)^{96}+\ldots+x^{54}(1+x)^{46} is 99Cp−46Cq{}^{99}C_p-{}^{46}C_q. Then a…HardSingle correct