Sequence and series Topics - IIT JEE Syllabus

1

2m3/10

📌 Key FormulaAP: nth term = a + (n-1)d, sum = n/2[2a + (n-1)d]. GP: nth term = a rⁿ⁻¹, sum = a(1 - rⁿ)/(1 - r) (r≠1)

2

2m2/10

📌 Key FormulaArithmetic mean = (a+b)/2

3

2m2/10

📌 Key FormulaGeometric mean = √(ab)

4

2m2/10

📌 Key FormulaAM ≥ GM, with equality when numbers are equal.

5

2m3/10

📌 Key FormulaΣn = n(n+1)/2, Σn² = n(n+1)(2n+1)/6, Σn³ = [n(n+1)/2]²