JEE Main 2019 — Sequences And Series Question with Solution
From: JEE Main 2019 (Online) 9th April Evening Slot
Question
The sum of the series 1 + 2 × 3 + 3 × 5 + 4 × 7 +....
upto 11th term is :-
Choose an option
Show full solutionCorrect option: D
Correct answer
D946
Step-by-step explanation
S = 1 + 2 × 3 + 3 × 5 + 4 × 7 +....
upto 11th term
General term Tn = n (2n - 1)
Sn =
Sn =
Sn =
Sn =
S11 =
S11 = 946
General term Tn = n (2n - 1)
Sn =
Sn =
Sn =
Sn =
S11 =
S11 = 946
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Sequences And Series chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2019, covering the Sequences And Series chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.