Example 2 - Chapter 8 Class 11 Sequences and Series
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
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
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo