Consider the infinite sequence {n^1/n } i.e. 1 , 2^1/2 , 3^1/3 . . . . .Find the largest term in this sequence(if it exists).
hint:use calculus
Narasimha Reddy
12 Years agoGrade Upto college level
2 Answers
bharat bajaj
12 Years ago
nth term of the sequence is given by : (10n + 1)/n for n>1 Differentiate it : 0 - 1/n^2 It is always less than 0. Hence, it is decreasing always. Hence, the largest term is 21/2.
Thanks
Bharat Bajaj
askiitians faculty IIT Delhi
PERUMAL
12 Years ago
nth term of the sequence is given by : (10n + 1)/n for n>1
Differentiate it : 0 - 1/n^2
It is always less than 0. Hence, it is decreasing always.
Hence, the largest term is 21/2.