a_1 =1 a_2 =2 a_(n+1) =(n+1)a_n −2a_(n−1) find a


Question and Answers Forum

All Questions Topic List
Algebra Questions
Previous in All Question Next in All Question
Previous in Algebra Next in Algebra
Question Number 81910 by mr W last updated on 16/Feb/20

$a_{1} = 1$ $a_{2} = 2$ $a_{n + 1} = (n + 1) a_{n} - 2 a_{n - 1}$ $f i n d a_{n} = ?$
Commented by jagoll last updated on 16/Feb/20

$a_{3} = 3 a_{2} - 2 a_{1} = 6 - 2 = 4$ $a_{4} = 4 a_{3} - 2 a_{2} = 16 - 4 = 12$ $a_{5} = 5 a_{4} - 2 a_{3} = 60 - 8 = 52$ $a_{6} = 6 a_{5} - 2 a_{4} = 312 - 24 = 288$
Terms of Service
Privacy Policy
Contact: info@tinkutara.com

Question and Answers Forum