Example 2 - Chapter 8 Class 11 Sequences and Series
Last updated at July 30, 2026 by Teachoo
Examples
Example 1 (i)
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Chapter 8 Class 11 Sequences and Series
Serial order wise
Transcript
Example 2 What is the 20th term of the sequence defined by an = (n 1) (2 n) (3 + n) ? We need to find 20th term i.e. a20 Let an = (n 1) (2 n) (3 + n) putting n = 20 in (1) a20 = (20 1) (2 20) (3 + 20) = (19) ( 18) (23) = 7866. Hence the 20th term is -7866
